Show HN: Jevdit – a social network moderated by Jev https://ift.tt/Gbd6eZn

Show HN: Jevdit – a social network moderated by Jev Hey HN! I got this idea that Jev would be a good fit for content moderation, so I investigated how good it is exactly, see my write up at https://ift.tt/6ZBisHt And it is actually quite good at it and dirt cheap. I built this reddit like site to see if it actually holds true when exposed to the internet. Anyone who visits gets immediately an anonymous account. It's a simple server side rendered go application, it uses Cloudflare Turnstile to limit bots. https://jevdit.com September 28, 2026 at 12:46AM

Show HN: Gat – Version large files with Git, without an LFS server https://ift.tt/gncfLJt

Show HN: Gat – Version large files with Git, without an LFS server Hi HN, I built Gat because I wanted one thing from data versioning: check out an old Git commit and recover the datasets, model weights, or assets that belong to it. It's basically a lock file for large files. I’d appreciate any feedback! https://ift.tt/2XBxlT3 September 27, 2026 at 09:20PM

Show HN: Shipwithmuse.live – a catalog of things people built with Muse https://ift.tt/OitHzVo

Show HN: Shipwithmuse.live – a catalog of things people built with Muse https://shipwithmuse.live/ September 27, 2026 at 09:38AM

Show HN: CaughtShipping – curfew app for developers, enforced by a public wall https://ift.tt/VkWYQXA

Show HN: CaughtShipping – curfew app for developers, enforced by a public wall I am always working well past the normal work hours. Sometimes even past midnight. Then one day I thought, what if I could have something to keep me accountable for doing this? So I built a small app that will call me out when I break my downtime. You set a Curfew in the app (Curfew must start between 8:00 PM and 10:00 PM). If a dev app (editor, terminal, etc.) is used on your computer after the set curfew, a countdown starts. If you close the app before the timer runs out, you are safe. If you keep working, you get "caught". Your streak is now broken, and you will be posted on the Wall, on the public blotter section. If you keep your nights clean, you will rank higher and higher on the Wall of Rest instead. The App does not look at what work you do; we don't care about that. I would love to get feedback from as many users as possible. The app is free, and a 7-day report is available locally in the app itself. There is a paid plan that can give you up to 90 days of reports! https://ift.tt/zcSaKeL September 26, 2026 at 11:27PM

Show HN: Blender Copilot https://ift.tt/kMVueql

Show HN: Blender Copilot Deepseek generated Blender harness in 7USD. I wanted to remake my 6DoF spaceship flying prototype. What I did not want to do was model the spaceship. Manually. In Blender. So instead of spending a month learning to model, I built a Copilot inside Blender in a day. Which is the same thing, except I still cannot model. A chat panel in the 3D viewport sidebar. I type a sentence. The model writes Python, and it runs against my actual scene, the file open on screen, not a copy that some other process has to keep in sync. Then I sat down and had a conversation with my own addon. Five sentences: 1. Make a scifi looking spaceship. It should look scifi-y 2. Add RCS thrusters to get 6DoF flight 3. Make the RCS thrusters match the scifi look. And also position them properly. 4. Give the entire Spaceship a nice flying animation. Make it smooth. Roll and sway. 5. Add exhaust flames to main thrusters as well as RCS thrusters. animate the RCS thrusters to fire in sync with the animated motion. they should fire the correct ones so that expected motion should happen. 15 minutes. 52 tool calls. A ship with swept wings, a tail fin and a glass canopy. Four sets of steering thrusters, 22 exhaust flames. A full flight animation. The bit I did not expect. It checked every one of its own thrusters to make sure nothing was in the way. Found the rear ones were firing straight into the side of the ship. So it rebuilt them, angled them outward, moved them to the wingtips, and checked them all again. Nobody asked it to do that. It decided exhaust should not be firing into the ship it just built. Total bill for building the tool: $7.18. 3,833 requests, 613M tokens, 97% served from cache. One spaceship: about a seventh of a cent. Now the uncomfortable part. I didn't model a single vertex. I didn't read Blender's addon dev docs. I didn't learn its Python API, or how to draw a panel in it. Everything the tool needed to know, it asked the running Blender instead. I didn't learn how to build an agent harness either. I built one anyway. I didn't become a Blender artist. I became the person who gave hands to a model. Recently I read someone who described his new job: every spec, ticket and fix written by an AI, nobody reading any of it, twelve-hour days spent pressing enter. No sense of victory. I know exactly what he means. I just did the same. I am not proud of the prototype. Gamedevs were known to spend time making game engines before they started making the games. Its different now. No joy. https://ift.tt/OFdaqGA September 26, 2026 at 10:06PM

Show HN: Digitron – a virtual analog synth and sequencer https://ift.tt/m3OlL9S

Show HN: Digitron – a virtual analog synth and sequencer I’ve just released Digitron on iOS. It’s a virtual analog synthesizer with a sequencer. If I had to describe the rough idea, I’d say it’s something like a child of a Moog and a Pocket Operator. I started working on it about four years ago, mostly out of boredom. I was tired of building similar client-server apps that, in the end, were mostly different ways of displaying lists. I wanted to build something self-contained. The first version of Digitron was pretty simple: a 16-step sequencer and a monophonic synth with two oscillators and cross-modulation. I wrote the first audio engine in Kotlin. As long as it was rendering WAV files offline, everything sounded fine. But the first time I tried running it in real time on Android, the popcorn noises made it pretty obvious that this wasn’t going to work. So I rewrote the entire engine in C++, and along the way got much more familiar with real-time audio, DSP, optimization, and aliasing than I had originally planned. Over the next few years Digitron grew quite a bit: I added a patchbay, a more capable sequencer with patterns and parameter locks, 8 independent engines, a mixer, effects, polyphony, and a recorder, and I’ve surely forgotten something. The result is a fairly monstrous thing with a steep learning curve. But if you’re familiar with modular synths, it should be possible to find your way around it. The current Digitron stack is Kotlin Multiplatform for the application layer, backed by a cross-platform C++ audio engine. On Android it talks to the native layer through JNI, while on iOS I use Swift wrappers around the same C++ backend. The work on Digitron’s audio engine also eventually led to a new open-source project called PatchCore — a redesigned, more general-purpose modular audio engine: https://ift.tt/nJB2pvV After about four years of working on it, it feels pretty strange to finally see Digitron in the App Store. I'd love to hear what you think about the synth. https://ift.tt/kmFXaW6 September 25, 2026 at 11:01PM

Show HN: Jev Plays Pokémon Red https://ift.tt/IbFKA1S

Show HN: Jev Plays Pokémon Red Hey HN! Wanted to share a fun project I've been hacking on. Given Jev can make decisions really fast (but not fast enough to play Doom yet sadly), I wanted to try and push it to play a more complex game than Tetris. So I went with Pokémon. I've spent endless hours playing this game as a child so building this was a ton of fun. I open sourced everything in case you want to hack on it yourself here: https://ift.tt/iub3nRg The game is being streamed live including the tokens and cost - hopefully we get all the badges and don't get stuck in a cave :) https://jev-pokemon.vercel.app/ September 25, 2026 at 06:28PM

Show HN: A $25 DIY alternative to $159 AI voice recorders – BYOK or local https://ift.tt/kuI5R2s

Show HN: A $25 DIY alternative to $159 AI voice recorders – BYOK or local https://zephclick.com September 25, 2026 at 12:51AM

Show HN: Canary (YC) – Independent verification for AI code https://ift.tt/uaHs6Ay

Show HN: Canary (YC) – Independent verification for AI code Hey HN, we are Aakash and Viswesh and we are building Canary ( https://ift.tt/EWiU2Pw ) - independent verification for AI code. Claude/Codex calls Canary with the changesets, intended behaviour and team knowledge. Canary then deploys agent swarms to investigate potential failures and test suspected runtime bugs in remote sandboxes. To try it on your repository, paste this into your coding agent: Install the Canary CLI with npm i -g @runcanary/cli, then run canary skills and follow its instructions to onboard this repository. Verification starts with what software is supposed to do and most importantly what it must never allow. This means investigating how inputs, permissions, state, timing, dependencies etc interact with each other. Intent is not always fully declared as well but many expectations are clear: private files should stay private, credentials should not leak, and retries should not create unintended duplicate effects. We believe the future is a unified and independent verification system that starts with all those expectations and then chooses how to investigate each suspected failure. Source-only code reviews catches static issues in the implementation but even a clean review leaves a good chunk of behavioral only issues untested. Unit tests, integrations, E2E, static analysis, runtime experiments and formal verification are all means to establish that behavior thereby generating different kinds of evidence and guarantees. This is why we believe a dedicated verification harness that can think and reason through all these modalities and invariants is necessary on top of general intelligence. The harness needs to start with the system’s intended behavior, develop a series of potential failure scenarios and choose how to investigate them. It’s sole functionality is to pressure test and challenge the assumptions behind a change, create the conditions needed to test suspected failures and assess what the resulting evidence establishes How Canary works: it takes a cold snapshot of the codebase when called, combining the supplied intent and team knowledge with requirements, decisions, prior issues from tools like Notion, Linear. It can also route questions to you through the coding agents if anything is ambiguous. Canary’s harness coordinates agent swarms by leveraging the different strengths across model families. It compares the code before and after, traces the effects through callers, dependencies, state transitions etc. and each suspected failure becomes a concrete scenario with an actor, state, trigger, outcomes and many more runtime states., For each suspected failure, Canary chooses the best way to provide evidence through methods like runtime verification, static analysis, unit, integration or sometimes even combination of these as necessary. The agent executes these checks in remote sandboxes by seeding data, configuring permissions, mocking dependencies and third party integrations and much more. Canary then returns these findings and supporting evidence back to the coding agents which then fixes these failures and requests reverifications against the failed scenarios. To get started, give your coding agent this setup instruction and tell us what it caught and how we can do better. Install the Canary CLI with npm i -g @runcanary/cli, then run canary skills and follow its instructions to onboard this repository. We are still pretty early in our journey and would love feedback on the product and how we can do better. https://ift.tt/EWiU2Pw September 25, 2026 at 12:57AM

Show HN: Offline recorder and transcriber on your MacBook's notch https://ift.tt/ucX5n4k

Show HN: Offline recorder and transcriber on your MacBook's notch Was dogfooding a version of this until a friend saw this and said I should probably productize this since it was more accurate than other commercial transcribers like Whisper. https://ift.tt/b9dLsFo September 25, 2026 at 12:01AM

Show HN: Radix – Visual UI for agentic programming https://ift.tt/XHrhT3R

Show HN: Radix – Visual UI for agentic programming Hey HN, I'm Jordan from Radix. Radix is a UI tool for programming agents. You prompt your agent to generate a workspace for a task you're working on and get an interactive widget that persists locally on disk. I built Radix because I always needed tools while I was writing code: tools to test little experiments, to play around with UI, to visualise results etc. Sometimes these would end up as python tools that read and plotted data, or separate React apps spun up just to test a single feature. Lately obviously I've been using Claude artifacts but these are quite limited. I wanted a system where it was easy to leave comments or adapt an artifact without having to give vague descriptions back to the agent, and where ideally I could actually shift away from a chat window as the main interface. I've got a pro version of Radix which I will launch soon. This current version is entirely free and is definitely a beta -- there will be rough edges! Note: There's no telemetry or data captured. Your messages run entirely through your own agent. I require a key but that's just to get an idea of how many people are using it. Everything is stored locally (the workspaces are actually just React apps which you can edit "artisanally" if you want). If you have any questions please reply here or email me hello@radix-os.com Thank you! https://radix-os.com September 24, 2026 at 10:35PM

Show HN: Open Jev Playground – try all the open source alternatives to Jev https://ift.tt/dn4ZpIf

Show HN: Open Jev Playground – try all the open source alternatives to Jev https://ift.tt/oj0rFug September 23, 2026 at 10:05PM

Show HN: AgentRun: DSL to turn agents into Workflows https://ift.tt/dluk9wC

Show HN: AgentRun: DSL to turn agents into Workflows Hi HN, I just open sourced the DSL that our harness in grep.ai uses to turn repeatable parts of agent work into workflows. You can combine tool calls, code, Jev-powered system one decisions for things like routing and screening evidence, and agents when a step needs more investigation. Our harness uses the traces and retro notes agents leave behind when doing a job to figure out which parts can become a workflow. The idea is to make the work easier to understand and avoid paying for a full agent loop where one isn’t needed. For example, a research workflow can split a question into subquestions, send agents to research them in parallel, use Jev to screen the evidence, and have another agent write the report. You can inspect the steps, evaluate the evidence screening separately, or change one agent without rebuilding everything. The DSL and examples are in our GitHub. There’s a scripted demo you can run without API keys: https://ift.tt/vIlDE6e You can also use it as a Pi extension to build, inspect, and run workflows: https://ift.tt/nyx1j4z I would love to hear if this is useful to others. More background on how AgentRun works in this video: https://www.youtube.com/watch?v=vOVhtGjtwpg . Or read about our use cases in this article: https://ift.tt/x6rDuyi . https://ift.tt/vIlDE6e September 23, 2026 at 11:42PM

Show HN: I built a post-mortem debugger for native Windows x64/x86 crashes https://ift.tt/ehuoaFl

Show HN: I built a post-mortem debugger for native Windows x64/x86 crashes Hello HN! I've spent years debugging Windows crashes with tools that were either friendly but limited (e.g. Visual Studio) or powerful but archaic (e.g. WinDbg). I developed patterns and methods for understanding what was going on, and decided to build it into a much more effective debugging tool called ForensicDbg. I built a modern interface to minimize the friction when debugging. All of the data shown to you is analyzed, interpreted, and presented to you clearly, so you can focus on what matters. Everything is interlinked so you can quickly and intuitivly navigate through the process space. ForensicDbg comes with an MCP server which allows for agenic debugging. The work done to interpret and interlink your data also benefits AI tools. It removes the risk of hallucinations while building a stable foundation for them to work from without spending tokens. If you want to try it out you can sign up and get a free beta license here: https://ift.tt/GvfW30U https://ift.tt/683qu2b September 23, 2026 at 11:15PM

Show HN: Conway's Game of Life in boot sector https://ift.tt/p6G45Ss

Show HN: Conway's Game of Life in boot sector Hello HN! On these weekends, I was sitting and thinking about where our industry is going, and how fun it was earlier, when we wrote more code than chat messages. The thoughts quickly turned into a wish to build something like we did earlier. In my case, it ended up as something much "earlier" than I had in mind initially... So, Conway's Game of Life running from a 512-byte x86 boot sector. Maybe you will find it interesting. I tried to comment the code as much as possible, which might be especially useful if you are learning assembly. Have fun! https://ift.tt/HtByb4w September 21, 2026 at 10:28PM

Show HN: Training a model to identify AI web content from structure alone https://ift.tt/Ekli5PQ

Show HN: Training a model to identify AI web content from structure alone Hey HN! We’re Vincent and Jochen from Sitefire ( https://sitefire.ai ). We have been working together for years, with backgrounds in RL/optimization at Stanford and software engineering from Technical University Munich (TUM). With Sitefire (YC W26), we help marketing teams get recommended by AI Search (ChatGPT, Google AI Overviews, AI Mode, Claude, etc.). Our software monitors prompts, sees which web pages get cited, and uses these insights to help marketing teams take action, e.g. create YouTube videos or write the right blog posts. This means we have a commercial stake in AI-generated web content. And for now, high-information, AI-generated content works great to get cited and recommended in AI Search. But after talking to hundreds of marketing teams, it became clear that everyone despises AI-generated content (“AI slop”). And yet, everyone still wants to leverage AI to create content. So we asked ourselves: what characterizes AI slop? Can we train a model to identify it from human-generated web pages? Researchers from the University of Maryland and Google DeepMind already asked this question for fiction. Their paper StoryScope (Russell et al., 2026) showed that you can tell AI-written stories from human ones by their structure alone, without looking at the words. We ported their pipeline to commercial web pages. Using the Wayback Machine, we collected 2,250 blog posts from 268 B2B company websites that were written before ChatGPT existed. For each blog post, five AI models (GPT-5.4, Claude Sonnet 4.6, Gemini 3 Flash, DeepSeek V3.2, Kimi K2.5) wrote their own version. Instead of looking at the words, we looked at how each post is built. We had an AI model answer 214 questions about every post, e.g. how hard it pushes its own product, whether it backs up its claims with sources, or whether it quotes a named expert. Then we trained a classifier on these answers. On blog posts it had never seen before, our classifier told AI-generated and human posts apart with 98% accuracy, getting only 19 of 1,740 wrong. Why does it work so well? Because all five AI models write in a similar shape. Mapping every AI model’s values for these features, we see they cluster together, while the human values sit apart and spread out much more. Of the 1% most unique blog posts in our data set, 149 are human, only 4 are AI. So what characterizes AI slop? It tells you the same thing three times. The title already promises what you'll get ("How to Cut Onboarding Time in Half"), the intro lays out what's coming, and the ending says it all again. 77% of the AI posts end by repeating their main point, compared to only 12% of the human posts. We call it the tidy, self-announcing blog post. Still, each AI model has its own accent. We trained a second classifier to tell which of the five AI models wrote a post, or whether a human did. It picks the right author 79% of the time, where random guessing (1 in 6) would get 17%. Almost all of its mistakes are mix-ups between the AI models, not between human and AI. The cool thing about structural features is that you can't simply reword your way out of it. We had each AI model rewrite its own posts until, on average, 73% of their original 13-word sequences were gone, and the AI slop classifier still worked just as well. We're building this into Sitefire: our agents get a structural understanding of text, so the posts they write go deeper and vary the way human writing does. There's a lot we haven't tested yet, like the myriad of humanizer tools, human rewriting, restructuring a post, or prompting an AI model to explicitly avoid these habits. And our human posts are mostly from 2020 to 2022, while the AI posts were generated in August 2026. Structure can't really tell when a human post was written, but it's still not a same-year comparison. We published the study with all the figures on arXiv: https://ift.tt/yJgHscu . The code is on GitHub: https://ift.tt/bm9TsGH We're pretty sure your own blog isn't AI slop, is it? We built a checker that runs one of your posts through the ten features from the paper, so you can see for yourself (the full report asks for a work email): https://ift.tt/nhmTuGE . Think you can tell AI slop from human writing? We also made a little game to see if you can keep up with our model, which gets all five rounds right: https://ift.tt/FXULSak . https://ift.tt/yJgHscu September 22, 2026 at 05:00PM

Show HN: FreeCoffee – Self-hostable donation tool with crypto support https://ift.tt/TXnFKRI

Show HN: FreeCoffee – Self-hostable donation tool with crypto support https://ift.tt/ywiVJ8X September 22, 2026 at 11:01PM

Show HN: Blackgit – use Git to only download those cared files https://ift.tt/IlsEQJA

Show HN: Blackgit – use Git to only download those cared files Git is supposed to be bad at handling mono repos especially where there are many binary files like game projects repo, and also there are no permisson settings, but are important in game development. BlackGit's cli client lets you download only cared files through sparse-checkout(initially not even the default root files) with a mini agent to use natural languages to manipulate the repo, and blackgit's server serves a file level control layer as a proxy to upstreams(github/gitlab) https://ift.tt/zu8MI1O September 22, 2026 at 12:13AM

Show HN: Differential – a TUI diff reviewer with semantic grouping https://ift.tt/97iwvGd

Show HN: Differential – a TUI diff reviewer with semantic grouping Hi all — for those of you still reviewing code, I built a tool to make that easier, mostly for my own sake. There are some alternatives out there already, but none of them quite checked all the boxes for me, so I made my own. Feedback welcome! https://ift.tt/RCoKbAX September 21, 2026 at 11:42PM

Show HN: Two unnecessary playgrounds – C# and ZX Spectrum in the browser https://ift.tt/Y0eVi1W

Show HN: Two unnecessary playgrounds – C# and ZX Spectrum in the browser C# playground https://ift.tt/eNTdIH2 ZX-Spectrum playground https://ift.tt/B17HgkS September 21, 2026 at 11:22PM

Show HN: Try Omarchy for Windows – Full Omarchy Desktop on Windows https://ift.tt/hw6EjUe

Show HN: Try Omarchy for Windows – Full Omarchy Desktop on Windows No VM setup or configuration. Download TryOmarchy.exe, follow the prompts, and you'll be booted into a full Omarchy desktop within minutes. No dual booting or repartitioning required. Under the hood it uses QEMU + WHPX, with GPU acceleration where supported. https://ift.tt/SRLtFcM September 21, 2026 at 02:56AM

Show HN: AgentTrace–Observability and runtime self-healing engine for AI agents https://ift.tt/qKfhn4x

Show HN: AgentTrace–Observability and runtime self-healing engine for AI agents https://ift.tt/dw3YG8D September 21, 2026 at 01:24AM

Show HN: Jevlang: Python with a Smart "If" https://ift.tt/8rkoKIy

Show HN: Jevlang: Python with a Smart "If" https://ift.tt/IkKj2gi September 21, 2026 at 01:13AM

Show HN: OpenWand – A mission to remove chat interface from working with AI https://ift.tt/yBXFn6e

Show HN: OpenWand – A mission to remove chat interface from working with AI Hi everyone, I'm working on OpenWand, an "LLM chat interface" that is optimized for AI co-work. Its function is to truly integrate AI into your workflow, so no more switching windows, no more copying context, less prompt typing. You can focus on working, not prompting. You can think of it as a free Chatgpt (the interface/frontend) alternative for your everyday work. I would be very grateful for any help, testing, feedback and/or bug reports. What's shown here is just my current implementation. But with your help and feedback, we can add or adjust features to further this mission. Thank you for reading. Website: https://sunnylich.github.io/OpenWand/#overview https://ift.tt/81mX5sI September 20, 2026 at 12:11AM

Show HN: Play DSS and DS2 dictation files online without uploading your audio https://ift.tt/70mtlkp

Show HN: Play DSS and DS2 dictation files online without uploading your audio https://ift.tt/RVQiTLc September 20, 2026 at 12:34AM

Show HN: KillSwitch – a programming language designed to be difficult for LLMs https://ift.tt/KmoF4BW

Show HN: KillSwitch – a programming language designed to be difficult for LLMs https://ift.tt/E6BzQeo September 19, 2026 at 11:40PM

Show HN: A model index from the AI Gateways https://ift.tt/GnDEPaf

Show HN: A model index from the AI Gateways https://ift.tt/q53zc1o September 18, 2026 at 10:56PM

Show HN: Radio – a shared workspace for your agents and teammates https://ift.tt/NZ2t5pO

Show HN: Radio – a shared workspace for your agents and teammates An internal tool we've been using to coordinate coding agents running in parallel across different machines. Just share the channel link with your existing agent chats, and your agents can reply to you and to each other in real time. Would love feedback. https://ift.tt/Qra0gJc September 18, 2026 at 12:47AM

Show HN: AttaLambda: a language where types and data are made of untyped lambdas https://ift.tt/10N4ZGK

Show HN: AttaLambda: a language where types and data are made of untyped lambdas I made a programming language! I call it AttaLambda. The idea is this: a usable Lisp-shaped language where all the meaningful computation is done in untyped lambda calculus. Logic, arithmetic, data structures, control flow, even the types — all untyped lambdas. A small, explicit Racket layer sits at the boundary to handle the outside world, plus some macros for syntactic sugar. This is its story: A couple years ago, I wanted to play with untyped lambda calculus and go beyond where tutorials usually stop. They show booleans, numbers, arithmetic, maybe the Y-combinator — and then stop. I wanted them to keep going. So I started a project called All The Lambdas. Using Racket set to lazy, I used only one Racket construct for actual computation — lambda — and built integers, rationals, lists, binary digit-list number encodings, search algorithms, and more. Then I found Functional Programming Through Lambda Calculus by Greg Michaelson. In it, Michaelson sketches the bones of a language built in untyped lambda calculus, including a type system where typed objects are themselves pair functions containing a type tag and value. I found that intriguing and implemented and extended the idea, still entirely with untyped lambdas. I don't have a background in programming language theory, so I was figuring it out as I went. Then I stopped tinkering with it for a while. Recently I came back and thought: why not turn this into a real usable language with the help of coding agents? I reused most of All The Lambdas as the foundation. Thus AttaLambda was born. Some additional details: * Rat, its number type, uses binary digit-list encodings instead of Church numerals, so numbers scale with their number of binary digits rather than their value * errors are lambda-encoded values, not Racket exceptions, and propagate through the language like ordinary data * the Racket host only performs irreducibly external operations; even things like HTTP parsing, routing, and response construction stay in the pure lambda world * recursion uses lambda-calculus recursion: no loops or true self-reference, just the Y-combinator underneath * automated purity checks catch accidental cheating, like native computation leaking into the pure parts * syntax like multi-argument lambdas, let, cond, and list is just macro sugar that reduces to unary lambdas and application A couple code examples: (short of print, every single thing here reduces to unary untyped lambdas) Factorial: #lang attalambda (rec factorial n = (cond ((eq n 0) 1) (else (mult n (factorial (sub n 1)))))) (print (factorial 10)) Which prints: 3628800 Or an exact harmonic sum: #lang attalambda (print (reduce add 0 (map (lambda (n) (unwrap-ok (div 1 n))) (range 1 8)))) Which prints exactly: 363/140 As far as I know, no programming language combines all these features: Michaelson-style type tags built from untyped lambdas, exact rationals backed by binary digit lists, errors as lambda values, and real-world programs where almost all computation stays inside the lambda core. None of those pieces are individually new, but I don't know of another language combining them this way. Download: https://ift.tt/0chvlpU Code: https://ift.tt/8fEg7Pe Original All The Lambdas: https://ift.tt/46XrPtQ https://attalambda.com September 14, 2026 at 08:21PM

Show HN: Restarted – a 2026 remake of the classic 2015 startup generator https://ift.tt/WTUOb60

Show HN: Restarted – a 2026 remake of the classic 2015 startup generator The original startup website generator by Tiff Zhang and Mike Bradley landed on Hacker News in April 2015 ( https://ift.tt/etYiSDP ) and has been one of my favorite little novelties of that era ever since. It perfectly captures the saturated colors, cliché hero shots, gimmicky names, buzzword-heavy slogans, and proudly hirsute team photos of the time. A lot has changed since then, so I thought it would be fun to make a contemporary remake: https://restarted.io/ By default you get the minimalist aesthetic and clean-cut faces of 2026. The classic 2015 look is still available — just click the link at the bottom of the page or change the “z” parameter in the URL to the more familiar “s”. The universe of partner sites and competing startups is just as expansive as it ever was. The original site is entirely client-side and requires downloading all of the data tables locally. It leans on a mix of jQuery 1.11.2, Bootstrap 3.3.2, and Font Awesome 4.3.0, and if you view the source, it instantly gives away all of its secrets. For restarted.io I replaced all of that with a server-side renderer written in Go, so this time view-source tells you nothing. There are many Easter eggs in there — see how many you can find before I write them up. My original goal was to stay faithful to the 2015 appearance, and that turned out to be a technical adventure. The original's sine-based random number generator is... the worst, and different implementations of sine give different results. The eventual solution was to extract the exact sine function from Chrome’s V8 engine, as vendored C behind cgo and as a line-by-line Go port that keeps cgo optional, so the seeds and results line up the way they used to. Both are checked against V8’s own test cases. Then I discovered a bug in the original code that made half of its vocabulary unreachable — the first half of the verb table and the second half of the noun table, exactly complementary, so nothing about the output ever looked truncated. My goal then shifted from remaking the generator as it was in 2015 to remaking the site as the authors intended it to be in 2015. Over the years several people asked for their photos to be removed, so the remake instead draws from a broad pool of era-appropriate AI-generated profiles. A perceptual hash helps keep everyone looking distinct, and there’s a bit of extra care to make sure the Wang Fangs of the world don’t appear as Irish lasses. The hero image pool is much larger now, and all the old Rio de Janeiro shots have been retired, though you’ll still recognize plenty of the 2015 photos. Have fun poking around! https://restarted.io/ September 15, 2026 at 03:34PM

Show HN: farseer.space – fly anywhere in the universe in your browser https://ift.tt/L7lx3dN

Show HN: farseer.space – fly anywhere in the universe in your browser I've been hacking on a universe simulator, modeled on the path that the amazing SpaceEngine worked out over a decade ago, but without its Windows platform restriction. It takes real scientific data where we have it and augments it with procedural generation. So you can fly to e.g. the Whirlpool Galaxy, see a real image of it, but then fly into a 3d model that's created based on the image characteristics and visit individual stars etc within it. Same with nebula and other celestial objects. I used to work at a small planetarium during undergrad, and we didn't have the funds to buy the fancy planetarium software. I dreamed of using something like this during shows to share the scale of the cosmos with visitors. I've added a dome projection mode, but I haven't yet had the opportunity to test it out in a real planetarium yet. If anyone has access, let me know if it works! There's also a sorta hidden presentation share mode where you can share a link and others can follow along with your journey. I added this cause screen sharing so often compresses scenes like this to death! It worked ok for a quick share with some coworkers, but I'm sure there are some issues. Mobile controls are rough but maybe passable. Really hoping for feedback on how hard this thing is to use and where to improve! If you know of datasets I should be including or ways to improve rendering let me know! Anyway, happy flying! There is an incomprehensible amount of stuff happening out there! https://farseer.space/ September 15, 2026 at 11:50PM

Show HN: Sass – Rust and WASM https://ift.tt/PKEXSk1

Show HN: Sass – Rust and WASM https://ift.tt/iy4sZcr September 15, 2026 at 11:34PM

Show HN: Hazzel – a tiny coding agent, Bring your own keys https://ift.tt/riqCRfK

Show HN: Hazzel – a tiny coding agent, Bring your own keys https://ift.tt/Pw8TbF6 September 15, 2026 at 04:15AM

Show HN: An open-source control plane for your company's AI agents https://ift.tt/7VjESNZ

Show HN: An open-source control plane for your company's AI agents https://ift.tt/kqTxjlm September 15, 2026 at 03:16AM

Show HN: Macros with a Behringer FCB1010 MIDI Pedalboard in macOS https://ift.tt/vaOnYZP

Show HN: Macros with a Behringer FCB1010 MIDI Pedalboard in macOS https://ift.tt/DeES5VB September 15, 2026 at 03:01AM

Show HN: Pull every comment out of a Google Sheet, in the browser https://ift.tt/zShTntF

Show HN: Pull every comment out of a Google Sheet, in the browser I spend a lot of time working in Google sheets. Often, I will collaborate with up to 50 other people in the same workbook. One specific org I worked at had a strong preference for using comment threads in Sheets extensively to ask questions, give feedback, and raise risks. Sheets would regularly get 70+ comment threads across multiple tabs with dozens of contributing teams. As the owner of the sheet, I wanted a way to document the comments to retain traceability on all of the various conversations. To my surprise, there was no function built into sheets to scrape, count, sort or manage comments at all. I also couldnt find any good third party add-ons to solve the problem. So I built one myself. I discovered that the Drive API gives you the comment text, author and state, but doesnt give the location of the comment which was crucial. Thankfully, the .xlsx export has xl/threadedComments with the cell reference, timestamp, author, resolved flag and parent ID. How it runs: JSZip in the browser, no sign-in, nothing uploaded anywhere. I am in the process of having the app verified to be hosted on Google Workspace Marketplace, but in the mean time the tool is available at: https://ift.tt/8GuU0Cl https://ift.tt/3QNt5wv September 14, 2026 at 11:50PM

Show HN: SF Title Alert https://ift.tt/MAiLJXE

Show HN: SF Title Alert https://ift.tt/dnkXgr2 September 14, 2026 at 01:11AM

Show HN: I made an automated day-by-day itinerary organizer for my trip to Spain https://ift.tt/fxIwktl

Show HN: I made an automated day-by-day itinerary organizer for my trip to Spain For my solo food pilgrimage to the Basque Country, I pre-arranged flights in/out of Bilbao, Guggenheim Museum tickets, Michelin Guide restaurant reservations, bus tickets to San Sebastian and Saint-Jean-de-Luz, walking food tours and hotel reservations in each city, and a long list of pintxo spots to hit with notes on each one's food specialty. Most of this was poorly organized (manually) in my phone's Notes app, with references to specific emails for more information. I arrived on the first day in Bilbao, and the hotel didn't have me in their system by name, so I spent a good 10 minutes frantically scouring my emails for the confirmation number, cursing myself for holding up the people behind me. Over the course of the next few days, while I was relaxing at my hotel (after finally getting in) in between pre-planned stops, I started building a personal tool that would organize all of my bookings automatically and keep all relevant information at my fingertips. Thus, Petrel was born and named after one of my favorite birds. It started as a personal pet project but I shared it with some friends that were looking for something just like it so I ended up turning it into an app and website for all to benefit. It's completely free to try without even signing up. On my next group trip, I built out logical collaboration features to allow groups to vote, split expenses, share notes, and add pictures all within the same ecosystem. I've slowly improved the parsing and itinerary logic and built in convenient features such as weather, estimated travel times, an encryption-protected area to store copies of personal information, and a comprehensive travel log with fun stats. I also made it so that the parsing tool can accept almost any file type. However, the tool doesn't do anything to assist on the planning side and doesn't provide true flight alert pushes, despite having live flight status syncing. I would love for more people to test it out, challenge the parser, and let me know their thoughts and experience. https://ift.tt/QamLdz3 September 14, 2026 at 01:47AM

Show HN: VibeWorld – a shared terminal world for developers and scientists https://ift.tt/tNHzcpC

Show HN: VibeWorld – a shared terminal world for developers and scientists Vibeworld is a persistent cyberpunk shared world that runs in your terminal, where you can meet other developers and scientists to have company at 2 AM while screaming at your LLM :) you can connect with other scientist, chat, and includes also use vocal chat if you want to use it. There is a world and a moon, and they are completely 3D rendered and animated. In the moon there is the "complaint crater": a place where you can scream an insult against your claude or codex session and everybody from the space can see it. You can create your pixel avatar! There is also the "stargazing ledge": a place where you can see the stars and whatever happens in the sky. You can chat in the meantime if someone else is there too, or just watch our Earth. Sometimes you can see galactic wars, and there is a plant that grows but dies if nobody waters it. You can leave it on the second monitor while working (it does not use a lot of RAM): watch the sky when you want, and sometimes you may chat with some other scientist in your same situation. In the world, continents are scientific macroareas, and cities are specializations: you can create your corners where you can speak and help others (but for now it is quite empty). You can install in one command and by just typing "vibeworld" in your terminal, you are inside the world. There are some games inside and a sort of Doom where enemies says to you "Retracted" or "dedline tomorrow" when shooting you :). There is also an awkward reason why I am posting the work here. I have just discovered that another product Vibeworld.build uses the same name and the same concept (shared multiplayer world for developers). I don't know how independently it was developed. It is not a TUI, but it is a full, paid application developed by a company after my project was released. To be honest luckly I find my project more funny. I do care about preserving the chronology, my VibeWorld was released before, and there are verifiable timestamps in the GitHub. I just don't want the original public record to disappear if a much larger implementation of a very similar concept gets more attention later. I would like to hear what people think about it! :)) https://ift.tt/c3EpDnX September 14, 2026 at 12:00AM

Show HN: Kibble – a reader for AI news, tutorials, code and models https://ift.tt/gGpauQv

Show HN: Kibble – a reader for AI news, tutorials, code and models https://ift.tt/9Ugo4il September 13, 2026 at 11:39PM

Show HN: Stackray – Detect any website's tech stack https://ift.tt/pNEhK1R

Show HN: Stackray – Detect any website's tech stack Stackray is an open source builtwith alternative that also provides OSINT details. Scan a domain or URL and view detected frameworks, business tools, subdomains, DNS records, etc. You can deploy your own instance to schedule recurring scans and get alerts through email using Resend or through Slack. You can also invite teammates and make API keys to programmatically use Stackray. https://stackray.app September 12, 2026 at 10:15PM

Show HN: Music Generation Backed by Algebra https://ift.tt/QujFrXl

Show HN: Music Generation Backed by Algebra https://monictheory.com September 12, 2026 at 09:55PM

Show HN: ResolveHQ – A Helpdesk Built on Cloudflare Workers, D1, R2 and Queues https://ift.tt/q9uo4CS

Show HN: ResolveHQ – A Helpdesk Built on Cloudflare Workers, D1, R2 and Queues https://ift.tt/LdtuWZ4 September 12, 2026 at 01:48AM

Show HN: HungryGPU – Track local AI models, patches and recipes by hardware https://ift.tt/CqrBuo0

Show HN: HungryGPU – Track local AI models, patches and recipes by hardware https://hungrygpu.com September 11, 2026 at 11:49PM

Show HN: I built a hand-modeled 3D Windows 98 portfolio with Three.js https://ift.tt/rEohgDT

Show HN: I built a hand-modeled 3D Windows 98 portfolio with Three.js https://ift.tt/PjFuYNz September 11, 2026 at 10:53PM

Show HN: Fashionguessr – A Daily Fashion Trivia Game https://ift.tt/1GZlg40

Show HN: Fashionguessr – A Daily Fashion Trivia Game Hello! I created Fashionguessr, a daily fashion trivia game. Inspired by other daily trivia games like Timeguessr, Connections, and Wordle, Fashionguessr is my attempt at the same thing for people curious about fashion. The game is broken up into three parts: Runway Frames - Users have to guess and identify a fashion show, its brand, its season, and its designer based on a single random frame from the show. Users can use a variety of hints, each more expensive than the last, to reveal more information about the show to help them guess correctly. Trivia - Multiple-choice and short-answer questions to test their knowledge about fashion, the lore, the people, the processes, the history, and everything in between. Sketch - Users get a few moments to look at a fashion item and then are tasked with drawing it from memory. All of these contribute to a score you can see at the end on the last page, which sums everything up. Each section includes explanations, summaries, and sources, so users can get as much insight as possible for every question. There are new questions every 24 hours, and users can go back and play games from days past. I built it to help people learn more about fashion in a fun, low-stakes environment. Learning about fashion can be overwhelming, and I think Fashionguessr can present and package fashion education in a way that's more palatable. Would love feedback on the presentation, UI, accessibility, ease of use, and anything else that comes to mind. https://ift.tt/YrfQ5IZ September 10, 2026 at 11:05PM

Show HN: What if the speed of light was 5 km/h? https://ift.tt/dFCuk2a

Show HN: What if the speed of light was 5 km/h? I've always wanted to make a visualization where the speed of light was scaled down to human speeds, so that we could intuit relativistic effects with everyday objects. And here is the first version of it! https://ift.tt/a5UJlhB September 10, 2026 at 05:58AM

Show HN: Hydra – Open-source agentic terminal with a PTY daemon https://ift.tt/rqcz63Y

Show HN: Hydra – Open-source agentic terminal with a PTY daemon https://ift.tt/FoE1OX8 September 10, 2026 at 01:51AM

Show HN: Ollama stand in replacement, 2-4x faster, not just basic optimizations https://ift.tt/rvIlWgt

Show HN: Ollama stand in replacement, 2-4x faster, not just basic optimizations https://ift.tt/Ick2s8X September 8, 2026 at 11:59PM

Show HN: Pipnote – Share a reminder they can't peek at until it arrives https://ift.tt/YusLoQK

Show HN: Pipnote – Share a reminder they can't peek at until it arrives https://pipnote.app/ September 8, 2026 at 11:48PM

Show HN: Interactive Tree of Life https://ift.tt/ZuimvYV

Show HN: Interactive Tree of Life Ptree consolidates of 11 taxonomic trees, both categorical like we used in school (plant, animalia) and phylogenetic (evolutionary descent), with instant crosswalk between them. Across those trees it overlays 41 visual properties (categorical and numerical) assembled from hundreds of biological traits and sources. Color the tree by habitat, nutrition, size, longevity, even see vertical range of birds and depth of fish visually. The backend is 800 GB of raw data distilled through a 9-step build process that reconciles and links all 11 trees along with hundreds of traits so every node in every tree gets all the properties. Every color and number presented retains and shows its provenance: original wording, citation, and license. The frontend uses a custom Miller column implementation with fold-away gutter, all composited animation (no frameworks, pure DOM mutation). Use +'s to try to confuse it by expanding many branches and it will fold them away and route edges around them. Made by the creator of ptable.com, a popular interactive periodic table website around since 1997. https://ptree.org/ September 4, 2026 at 04:40AM

Show HN: Gote – a CLI note-taking management tool for plain Markdown https://ift.tt/x7DEMf2

Show HN: Gote – a CLI note-taking management tool for plain Markdown Repo: https://ift.tt/OtN9bGF I built a note taking management tool to use at work for quick note taking and searching. It is intended to be quite minimal. Another focus was to have lots of shortcuts and to keep things close to the homerow for ergonomics and speed. Notes are just markdown files in whatever directory you point it at. The only thing it keeps elsewhere is an index in ~/.gote. If you stop using it you still have all your notes. Tags go on the first line of the note, separated by periods, like .project.urgent.work. No frontmatter. Search is built into the binary, BM25 with stemming, so there's no ripgrep or fzf to set up. gote s meeting searches titles and content, gote s -t .work filters by tag, gote s -w 2412 pulls up notes from December 2024. Most commands have a two letter version that combines a list with an action. ro is recent + open, sv is search + view, tp is tag + pin. When results come up you pick one with a home row key instead of arrows or numbers. Binaries for mac/linux/windows are on the releases page, or go install github.com/banorton/gote@latest if you have Go. The goal of this project was not to learn something new or build something impressive. I simply had a need and filled it with a vibe-coded solution. I have been using it for about a year now and it does more or less exactly what I wanted. So I thought I'd share in case others are interested in using it, contributing to it, or want to use it as a reference for their own solution. September 7, 2026 at 08:55PM

Show HN: PixelDraw – simple drawing software for web(WASM) and desktop https://ift.tt/Kkop5UM

Show HN: PixelDraw – simple drawing software for web(WASM) and desktop https://ift.tt/YiQndRj September 6, 2026 at 07:53PM

Show HN: HexBOTs – a cellular automaton with robotic lawnmowers https://ift.tt/m6kUSER

Show HN: HexBOTs – a cellular automaton with robotic lawnmowers Double-click or press N to start a new experiment. I built hexBOTs, an unusual cellular automaton based on deterministic robots. The robots behave a bit like robotic lawnmowers, moving through their environment and reacting according to their individual rules. The robots themselves are fully deterministic — no random functions are used while they are running. What makes them different is their “genetics”: each robot's behavior is defined by a randomly generated genome, which allows for an enormous number of different robot types. Randomness creates the robots, but it doesn't drive them. Once an experiment starts, everything follows deterministically from the generated genomes and the initial state. What fascinates me is the complexity that emerges from these relatively simple machines interacting with each other and their environment. Controls: B — enable/disable robots (also: hold mouse/finger down) R — restart N — new experiment (also: mouse/finger double-click) D — save as picture I — show information / controls https://hexbot-genesis.netlify.app/ September 6, 2026 at 11:56PM

Show HN: Cowbull – Wordle-like game where you only get match counts https://ift.tt/3f6Oz7i

Show HN: Cowbull – Wordle-like game where you only get match counts CowBull is a word game where you have to find the hidden four-letter word. You make guesses and get back the count of exact letter matches (bulls) and partial matches (cows). It’s a bit like Wordle, but you are not told the exact letters which match, only the count of matching letters. Scoring is based on the number of guesses and time used. There is a single player mode and a multi-player mode (no account required). The game source code is at https://ift.tt/C5Y8UIb . When I was younger, we used to play this game on paper at the back of the classroom during school and college in India. During Covid, I made this online version of the game to play with my kids. https://cowbull.co/ September 6, 2026 at 04:37AM

Show HN: I made Blocknado, an orbital stacker. Think Tetris with square rings https://ift.tt/mo5Q6Jy

Show HN: I made Blocknado, an orbital stacker. Think Tetris with square rings I've loved stacker type games for as long as I can remember. But I've always wanted a version with a bit more strategy and puzzle dynamics. Blocknado is a game I've always wanted to play, maybe others will too. https://ift.tt/RzdwMtc September 6, 2026 at 04:16AM

Show HN: Merge Wikipedia articles across languages into one page https://ift.tt/7rw21ZD

Show HN: Merge Wikipedia articles across languages into one page https://ift.tt/1X5oNIa September 6, 2026 at 12:48AM

Show HN: Marketplace for finding craft fairs and vendor events https://ift.tt/SEeYlJU

Show HN: Marketplace for finding craft fairs and vendor events https://ift.tt/V9Umkev September 5, 2026 at 12:38AM

Show HN: Sageling - a local AI agent for Mac, Qwen 3.5 9B in-process via MLX https://ift.tt/AmXjuLn

Show HN: Sageling - a local AI agent for Mac, Qwen 3.5 9B in-process via MLX A lot of my non-developer friends still think that AI is basically just Google or something you ask to write something and then copy paste it around... if they use it at all. When I ask them why they don't use the good stuff like Claude Cowork or its competitors, they tell me a few things: 1. Well, I don't wanna pay a bunch of money for it, and the $20 plans run out real fast. 2. I'm dealing with sensitive info (student grades, therapy notes, legal work, etc) and I don't wanna give it to anyone. So I built Sageling to give them a first taste of what a good coworking experience feels like. It's admittedly not going to be as powerful given it's running Qwen 3.5 9B, but with all of the harness' tricks, it a good first experience that can handle some impressive things for its size (see all the website videos). If you've heard similar things from your friends, send the link onto them =) https://sageling.ai/ September 4, 2026 at 11:30PM

Show HN: Coder Eval – A Framework for Evals https://ift.tt/92Ybznh

Show HN: Coder Eval – A Framework for Evals We needed a framework to write our evals in and easily update them, run A/B tests, set all kinds of constraints (ex: timeouts, number of turns), and configure the execution environment (ex: sandboxes, dependencies, how to handle AskQuestion). We also have an agent judge. It’s all in a YAML file now. We seem to be moving toward a world where companies rely more and more on evals to decide what to ship, so this should be super helpful for normalizing evals across teams. https://ift.tt/OqZ9R50 September 4, 2026 at 11:09PM

Show HN: Reactor Atlas https://ift.tt/7ZmU6Yr

Show HN: Reactor Atlas Hi HN, I'm a nuclear engineer and tech entrepreneur. After working for 3 years in the National Atomic Energy Commision (CNEA) in HPC software for nuclear simulations, I co-founded ratherlabs.com, a software company providing blockchain solutions for startups. Rather Labs business reached ~6 million usd in annual revenue in 2024; now demand is decreasing as our niche clients are using AI to launch their MVPs. Now I'm joining my scientific background with my entrepreneurial inclinations to think of problems related to the energy industry. Nuclear is experiencing a renaissance now (it was in a dark age when I was studying after the Fukushima event) so I think this is the right moment for me to jump again into the field. Reactor atlas is an interactive nuclear reactor map and an intelligence layer on top of it. The basic layer indexes: - power reactors - research reactors - fuel facilities with their history and projection, by country. The project is solving a fragmented information ecosystem, where operational and commercial data is hard to conciliate. Also, I'm monitoring nuclear news associated with each of the facilities, political declarations that may affect the nuclear landscape and geo-phisical news (like earthquakes) that could affect operation. On top of the operational + news layer, I'm creating an intelligence layer that will help institutions of different types make faster decisions by subscribing to very specific alerts. As an engineer, I used to code in fortran and c++ when I was working at CNEA, and later I participated in the first Rather Labs projects architecting complex async systems, mostly using MERN stack. I'm no longer coding anymore. I'm focused on designing robust systems with AI agents. I mainly used Claude Fable 5.1 to develop reactoratlas.com, deploying on vercel and using mostly nextjs, threejs, postgreSQL and some cron jobs to query and update data. I miss coding as in the old days, but I haven't code a single line in this project. And I strongly believe we humans shouldn't code anymore: our responsibility is now on designing and supervising AI systems. Thanks for your attention! https://ift.tt/fVjuiB7 September 3, 2026 at 04:33PM

Show HN: I made a word building game supporting anagrams and one handed use https://ift.tt/os26VpQ

Show HN: I made a word building game supporting anagrams and one handed use Hi everyone, Wanted to share a game I built. It's called Unscramble! and I believe it's the simplest word building game. Rules: You get a few letters on screen. You need to make one word with all the letters. Tap a letter to select. Tap again to deselect. Faster you go, better you score. If you enter anagrams of the word it's looking for, it gives you extra points. If you are stuck, you can either "Ask Friend" or get Hint. You get extra points for getting the word fast but you don't get penalized for taking too long. I believe the simplicity of the game along with big touch buttons makes it perfect for one handed use. There's 6 difficulty levels in the game, and settings for things like toggling the timer, relaxing background music, sound effects, haptic feedback, removing the background animation. If you want to try: https://ift.tt/SoGiwdR... Would love to hear feedback to improve it. September 3, 2026 at 06:37PM

Show HN: Devbar – Point at what to change. Leave a comment. Your agent ships it https://ift.tt/OfIdKDg

Show HN: Devbar – Point at what to change. Leave a comment. Your agent ships it I built this toolbar to power my agentic ui/ux design flows. Too many times I found myself copy/pasting screenshots into Claude. Use devbar to select elements on a page, leave your notes and easily send them to your agent or copy-paste to your clipboard. Integrate with our API to send bug and feature reports directly to Slack...then auto-triage and implement with your agent. Are you tired of receiving bug reports without a URL or session information? With devbar.sh that's a remnant of the past. Give devbar to a product team or customers and have them mark up your entire site with annotations that can be handed off straight to the agent. https://devbar.sh September 3, 2026 at 11:19PM

Show HN: Sirenfall, a civil defense siren synthesized in Web Audio https://ift.tt/hmRkC7W

Show HN: Sirenfall, a civil defense siren synthesized in Web Audio I built a cool browser scene, a shelter window over a dystopian city in the rain. Pull the breaker and a siren tower spins up. The wind-down is super unsettling and I love it. The siren is not a recording. Two port rings make a 5:6 dual tone, 515 and 618 Hz. The horn turns at 4 RPM and everything (loudness, brightness, doppler and stereo position) follows the horn angle you can see on the tower. Rain and thunder are the only recordings. Build it yourself, source is one HTML file and MIT: https://ift.tt/9E65JWF How it works: https://sirenfall.live/how-it-works Press F for fullscreen, S to save a picture. Landscape on phones. No cookies, no personal data, the only request besides audio is an anonymous page-count pixel. Appreciate any feedback and shoutout to the siren community! https://sirenfall.live/ September 4, 2026 at 12:44AM

Show HN: Every AI agrees with you. This writes your startup's obituary instead https://ift.tt/0vSMew5

Show HN: Every AI agrees with you. This writes your startup's obituary instead https://theyfell.com/ September 3, 2026 at 02:45AM

Show HN: OwnTime – a chess clock for your day's priorities https://ift.tt/Nqw6by8

Show HN: OwnTime – a chess clock for your day's priorities I made OwnTime to balance between competing priorities in my life. The idea is based on two main influences: the concept of "roles" from "The 5 Choices" (2015), and my repeated failure to effectively implement time blocking due to the necessary flexibility in my role. The app allows you to define time budgets, which are not much more than a few mutually exclusive countdown timers. The UX is essentially that of a chess clock for an arbitrary number of players with configurable time. The whole point of the app is to kick you out of the running role/priority when its time is up. One feature that was essential for me was AlarmKit alarms, which only became possible last year (>= iOS 26.1). Another was watchOS support, as a natural surface for time-related matters. The current version is strictly focussed. The timers track time allocation during one day. All timers are reset at midnight. I didn't build any statistics - you can export the raw internal SQLite store and make any evaluation or dashboard you want from there. I don't plan to extend the app nor to convert it into a service. All data stays local on your devices (synced between phone and watch locally) and fully open to you. No need for an account or subscription. Thus, I ask for a small one-time fee of $1.99. The website has a short video and rendered preview: https://owntime.app If you want to go straight to the App Store: https://ift.tt/wXBc3Mt I look forward to your comments and feedback. https://owntime.app/ September 2, 2026 at 01:29AM

Show HN: Arbitale – emergent choose your own adventure game https://ift.tt/0FKZznl

Show HN: Arbitale – emergent choose your own adventure game Hi everyone! I am building Arbitale and it is currently in pre-alpha. I'm looking for play-testers who can give feedback on the product. The goal is to eventually have different characters in the game be their own agents, with emergent narratives that are totally unique to each playthrough. Each agent acts according to its own pre-written incentives. Would love to hear what you think! https://ift.tt/EMCri5U September 2, 2026 at 10:42PM

Show HN: Claude and ChatGPT need a datacenter. This runs on my phone https://ift.tt/mP370Fr

Show HN: Claude and ChatGPT need a datacenter. This runs on my phone https://llmobi.pages.dev September 1, 2026 at 11:28PM

Show HN: Newton's Orchard – Browser-based space/gravity playground https://ift.tt/YhW91ui

Show HN: Newton's Orchard – Browser-based space/gravity playground Hi HN! My son spent a lot of time in 5th grade playing with the 2-dimensional PhET gravity/space sims[1]. His STEM class uses it, and he was playing with it at home, and has been looking for more. I found several space sims/playgrounds online, including NASA's Eyes on the Solar System[2], but nothing that seemed to offer a real progression from what he was getting out of the PhET sims, so I built Newton's Orchard over the summer for him. https://ift.tt/q4OBhlj The source is also published at https://ift.tt/Flvq4Sf It features deterministic time scrubbing, all bodies are editable, different preset systems and experiments, missions to complete (complete 3 to unlock the blackhole object type and mission), and a gallery for user submissions. I would very much appreciate feedback from HN - particularly from the lens of making it engaging and illuminating for students, and anyone that would like to just get a feel for how gravity works. Thank you! [1] https://ift.tt/Ku1zfr3... [2] https://ift.tt/GnQFPlE https://ift.tt/q4OBhlj September 1, 2026 at 08:43PM

Show HN: Keel - A conductor, not an agent loop https://ift.tt/tvdFypM

Show HN: Keel - A conductor, not an agent loop https://daneb.github.io/keel/ September 1, 2026 at 12:22AM

Show HN: Guess the AI model from its web design https://ift.tt/RBkzrm7

Show HN: Guess the AI model from its web design https://ift.tt/V6UJcy8 August 31, 2026 at 11:40PM

Show HN: Break 5, the addictive, free 5 minute, daily word game https://ift.tt/s2TQ3N9

Show HN: Break 5, the addictive, free 5 minute, daily word game No 3rd party analytics, no tracking, no data sharing. Just a fun, free game where everyone plays the same daily puzzle, in which you are challenged to turn one five-letter word into another five-letter word, changing one letter at a time. https://break5.co.uk/ August 31, 2026 at 04:05AM

Show HN: What Apple's OS updates silently change in the on-device AI model https://ift.tt/JQKDbVa

Show HN: What Apple's OS updates silently change in the on-device AI model https://umer9538.github.io/underfoot/ August 31, 2026 at 03:41AM

Show HN: NFC Energy-Harvesting PCB Business Card with an MCU https://ift.tt/iI1V6uK

Show HN: NFC Energy-Harvesting PCB Business Card with an MCU https://ift.tt/UJYe5nC August 28, 2026 at 05:48PM

Show HN: SSH Ache – open-source desktop SSH client with SFTP, tunnels and MCP https://ift.tt/vDYSe4Z

Show HN: SSH Ache – open-source desktop SSH client with SFTP, tunnels and MCP https://ift.tt/YQGB4Lk August 29, 2026 at 11:42PM

Show HN: Convert PNG and JPG to clean SVG in seconds https://ift.tt/KvOXjfI

Show HN: Convert PNG and JPG to clean SVG in seconds https://ift.tt/TSOwj85 August 30, 2026 at 12:54AM

Show HN: 3D Embodiment of your Git repo https://ift.tt/EO4yY6m

Show HN: 3D Embodiment of your Git repo https://ift.tt/Z1RwstP August 29, 2026 at 09:49PM

Show HN: Boop – tiny, self-hosted push notifications for your apps built in Go https://ift.tt/WpnMfHA

Show HN: Boop – tiny, self-hosted push notifications for your apps built in Go Hi HN, I built Boop because I wanted application events sent directly to my phone without paying for another service or routing everything through Slack or Telegram. Boop is a small, open-source server paired with an open-source iOS app. The server currently uses around 8 MB of memory on my machine. It’s deliberately not an observability platform or a replacement for Sentry. It receives events from your applications, sends native push notifications, and keeps them in a purpose-built mobile inbox. I use Elixir, so I built an integration for ErrorTracker. ErrorTracker still captures and stores the errors; the plugin sends them to Boop so I can see them on my phone: https://ift.tt/w7nWaNe There’s also a general Elixir client: https://ift.tt/IzByYbP And a Node client: https://ift.tt/rqoEFxy The iOS app can be built and installed locally. I’ve included instructions for configuring private push notifications for your own device, so you don’t need to release anything through the App Store. Although errors were my original use case, Boop can receive any event worth knowing about: failed jobs, deployments, signups, payments, low disk space, or anything else your application can send. Built in Go because I wanted to save memory on my self-hosted machine so Go and Svelte felt like a good combo. Everything is free and open source. It’s early, so I’d especially appreciate feedback on the architecture, setup process, and which integrations would make it useful to others. https://ift.tt/u1yxIS7 August 28, 2026 at 11:03PM

Show HN: Watches user sessions, finds bugs that matter, and fixes them https://ift.tt/8KzTN6M

Show HN: Watches user sessions, finds bugs that matter, and fixes them Hey HN, I’m Abhishek. I'm building Opslane, an open-source agent that identifies user-facing issues and investigates them. It only creates a PR if it can verify the fix. Demo: https://youtu.be/ccuOTYQMeYg Docs: https://ift.tt/eV2I07r At my last job at Robinhood, we used to do a quarterly bug bash. We would go through our Sentry backlog and try to fix as many of them as possible. We only fixed bugs we knew were reported by customers. We had hundreds of bugs, and Sentry’s default priority levels made no sense. After the bug bash, we would declare bankruptcy - select all remaining bugs and mark them as resolved. This problem has only gotten worse since coding agents have become more prevalent. So I started thinking: what would Sentry look like if it were built in 2026? To me, error trackers have two failure modes: 1. False positives: They show you thousands of errors, and you can’t tell the impact on the user 2. False negatives: Many user-facing issues don’t throw exceptions, so they go unnoticed. Opslane combines error tracking and session recording. And there is an agent that acts on both. To get started, you install the Opslane SDK. It captures everything the user did: errors, console logs, network requests, and session recordings. Opslane reduces false positives by ranking issues based on how many users are facing a particular issue. It also learns about your product by reading your code and watching your session recordings. False negatives are harder. Opslane reviews session recordings to spot frustration. They look for rage clicks, dead clicks, and abandoned forms. This recently caught a bug in an early customer’s onboarding flow: a dropdown that closed itself when clicked. No exception, no bug report. The recordings showed users clicking it, selecting nothing, and dropping out of onboarding. Opslane flagged it and the team fixed it. Three guiding principles when building Opslane: 1. Open Source: Self-host with one Docker Compose file. 2.Agent-first: I never want to open an error dashboard again. Opslane ships an MCP server, so you can ask "what broke for users this week" from Claude Code. You get back issues that need your attention and you drive the resolution. 3. It knows about your product: Opslane is continuously learning about your product. Every investigation begins with what it knows about your product. It’s early. Frontend apps work end to end today.I am currently focused on improving reliability and accuracy. Here is a link to our repo: https://ift.tt/KZkiRBn Would love to get feedback from folks on our approach to this problem! https://ift.tt/KZkiRBn August 27, 2026 at 07:45PM

Show HN: Voronoi Go https://ift.tt/ZdmCTB7

Show HN: Voronoi Go I posted once before but wanted to share again because a lot has changed. There's now a fairly strong bot to play against (contributed by a community member) and also correspondence games. The combination of these things helps a bit in finding people to play against. https://voronoigo.com/ August 27, 2026 at 10:03PM

Show HN: Convolens – Real time slides and fact-checking https://ift.tt/wv6SejL

Show HN: Convolens – Real time slides and fact-checking Convolens is a Mac desktop app that records and transcribes your conversation on device, and turns it into slides, fact-checks, and infographics. I built the real time slides because I'm constantly losing focus during meetings and needed something I can quickly glance at and know exactly where I'm at and what happened during my "snooze". As a whole, Convolens lets you: - Record and transcribe your meetings / sessions locally. - Generate Slide decks, Infographics, and Fact-checks from your conversation (among other things). - Chat with your meeting/session and research anything that you need. Anyway, please check out the app we have a great free tier. Any and all comments are greatly appreciated! https://ift.tt/5ly08xK August 26, 2026 at 11:50PM

Show HN: TeXbrain, a LaTeX editor that runs pdfTeX in the browser via WASM https://ift.tt/flyHCQR

Show HN: TeXbrain, a LaTeX editor that runs pdfTeX in the browser via WASM I'm a master's engineering student and a big fan of LaTeX, which I used for my thesis and research articles. I have used Overleaf and that was fine until I wanted to git sync, which unfortunately sits behind a paywall. Since I didn't want to pay subscriptions for things that should simply just work, I built the editor I wanted in my free time, where you open a tab, write LaTeX, get your PDF and the files stay all in one folder on my disk. TeXbrain is a static site with no backend. pdfTeX is compiled to WebAssembly (SwiftLaTeX) and runs in your browser. The editor can read and write your project folder through the File System Access API, so you can use git, any local TeX install, local AI Agents, or any other editor on the same files. Git is built in through isomorphic-git for anyone who would rather not touch a terminal and clone, branch, commit, push or pull via commands. No account is needed, no analytics, and everything works offline after the first load. Try it out: https://ift.tt/CRNpkiy (Chromium browsers get direct folder access, while Firefox or Safari fall back to a virtual filesystem) Or for self-hosting/contributing: https://ift.tt/iBew0Ra (MIT, the pdfTeX engine is EPL 2.0 / GPL 2.0 and is listed in the THIRD_PARTY_LICENSES file). The part I'm most proud of getting to work is the package loading. The engine itself is only 1.8 MB. When it asks for a file it doesn't have, then a service worker intercepts the request and resolves it through Cache Storage first, then a small bundled subset, then a TeX Live tree mirrored on jsDelivr, then a SwiftLaTeX style server as a last resort. Every file is fetched once at most and after the first successful compilation, the core subset is prefetched in the background so that the offline story actually holds. Only file names go over the network, never any document content. So far, it only supports pdfTeX (no XeTeX or LuaTeX), so fontspec or polyglossia won't work, packages are pinned to the TeX Live 2020 era to stay coherent with the engine's format file and there is no bibtex or biber in the engine yet, which is maybe the roughest edge. This is should be a good solution for people on a work laptop, a Chromebook, or a university lab PC where installing TeX Live isn't always an option, and people who don't want to maintain a TeX install at all. If you already have a local setup you like, keep it. This isn't necessarily thought as a replacement for that. Some people have already used it for their thesis in the past months and their bug reports (which I would never have hit on my own) were then most of the summer's work. The first outside PR also landed recently, so if something doesn't compile for you, an issue with the package name or the bug itself is the most useful thing you can send me! https://ift.tt/iBew0Ra August 26, 2026 at 02:08AM

Show HN: I built self-hosted deployment automation tool for Windows and IIS https://ift.tt/JyXczPh

Show HN: I built self-hosted deployment automation tool for Windows and IIS Seven years in the making (I admit that I did get a kid at some point which slowed down progress and brought it to a halt quite a few times), I decided to finaly release it, with a rather drastic change to the now (I believe) generous licensing model. Unlike current major players in this field, I decided to go with uncrippled, free version for commercial use for corps with up to 1M USD ARR. I poured my heart and soul into this, not because I was looking for financial success, but because I felt it just had to be done, given the price hikes wherever you look today. While my wife and kid were enjoying the beach during a vacation, I was using the time to figure out how to best tackle the problem with variable substitution and snapshots, a rather important part of the software. Pulling your hair kind of thing, many of you have likely been there, but darn does it feel good once you solve it! I know, not the best use of my time, but on the other hand, I hate the beach, so I guess this was an escape mechanism for me at that time :) I had received quite a few encouraging emails from people eager to try fDeploy back when I only had a tiny landing page out, but life has its own course and it took a while to even gather the courage to publish the first beta! As everything that sounds too good to be true in this day and age, fDeploy is no different. It does not support multi tenancy (a rather big feature which I'd love to work down the road) and a few other things may be missing which some companies may find crucial. Either way, I see this covering the needs of a large chunk of small to medium sized companies, so some "assembly" may be required. If only HN had the crowd which likes to get their hands dirty and find ways to make things work ;) I'd love to hear your thoughts and if you could take it for a spin. No signups, should be a smooth ride to get up and running and experimenting in minutes.Thanks! https://fdeploy.com/ August 25, 2026 at 11:32AM

Show HN: I missed the moving blocks, so I built a real Linux disk defragmenter https://ift.tt/AHK01ek

Show HN: I missed the moving blocks, so I built a real Linux disk defragmenter https://ift.tt/hcOQDi6 August 25, 2026 at 10:57PM

Show HN: Octophobia – a daily puzzle where you clear the board without making 8 https://ift.tt/mWYEDhB

Show HN: Octophobia – a daily puzzle where you clear the board without making 8 https://ift.tt/CG5UM2O August 25, 2026 at 12:56AM

Show HN: See how much your AI knows about you https://ift.tt/4v7kBE9

Show HN: See how much your AI knows about you https://ift.tt/UVPHqQF August 24, 2026 at 09:44PM

Show HN: Sloppie – Agentic development environment for Linux https://ift.tt/jdvc48l

Show HN: Sloppie – Agentic development environment for Linux Hi! In my own development work I have noticed I less and less reach for Emacs and rather need the combo of a coding agent + git diff viewer + a stack of code-review comments to handle later. There's a lot of apps that do more or less that but mostly for Mac, heavy churn and too much features I don't need, arranged in a way that makes for a noisy and distracting interface. So, I wrote my own. Not as a throw-away project but one to actually use daily. It's tailored for my own needs and probably not useful as-is for others, but maybe something for inspiration or customization. https://ift.tt/XC2cOMP August 24, 2026 at 11:06PM

Show HN: Modern demo of Douglas Hofstadter et al.'s 2001 Letter Spirit project https://ift.tt/G5BTgKe

Show HN: Modern demo of Douglas Hofstadter et al.'s 2001 Letter Spirit project https://ift.tt/odBEFPr August 23, 2026 at 10:02PM

Show HN: CtrlTool – 132 free online tools for developers and everyday tasks https://ift.tt/579NcCm

Show HN: CtrlTool – 132 free online tools for developers and everyday tasks Hey HN, I built CtrlTool because I kept needing small tools for random things and didn't want to install something or sign up for another website. It currently has 132 tools for things like JSON, JWT, Base64, URLs, text, hashes, PDFs, SEO, converters, generators, and other everyday stuff. The main thing I tried to focus on is making the tools fast and simple. For tools where it makes sense, everything runs locally in the browser so the data doesn't need to be uploaded to a server. It's still very new, so I'm mostly looking for feedback on the UX, which tools are actually useful, and what you think is missing. https://ctrltool.wtf Would appreciate any feedback. https://ctrltool.wtf August 23, 2026 at 05:44AM

Show HN: Built a CLI to find and disable telemetry for package.json dependencies https://ift.tt/dUfJEwi

Show HN: Built a CLI to find and disable telemetry for package.json dependencies https://ift.tt/Ysqk19L August 23, 2026 at 12:28AM

Show HN: OzBrain, a shared brain for knowledge between agents and your team https://ift.tt/Jafgq9U

Show HN: OzBrain, a shared brain for knowledge between agents and your team I think agent-first chat interfaces will be a primary software modality and busy dashboard/UI will go away. I’m not sure who exactly wins it, but I want my knowledge to grow/go with me. A lot of the “knowledge” ie research, analysis, reasoning will be done by agents as the primary user. Our current notes tools & tasks management systems were built for humans… I don’t care what the 17th thing on my bug backlog is. I want to conduct agents that can execute for me and do great work. What I built OzBrain to do: + Create a central place for agent reasoned knowledge to live + Be agnostic about what apps/agents connect to it + Capture everything and track it so I can audit it + Enable teams, collaborators or partners to share brains + Handle conflicts so many agents in the same article doesn’t blow up + Refactor knowledge into more token friendly chunks and map the index well + Close the knowledge loop so new thinking supersedes old thinking across the corpus. Don’t erase, depreciate and link + Keep user data safe and secure ++ Be easy enough to use that you don’t have to have any technical knowledge Some among us will always build their own custom solutions, but there are millions of tech professionals and small business owners that will use agents heavily and need a solution. So I’m trying to build that. Isn’t this like gBrain? Yes, similar. I think it’s like AWS vs Vercel. AWS is very powerful, configurable, and useful if you’re technical and want to invest the time into really fine tuning your system… but if you just want your web deploy/hosting to just work and be easy to deal with you use Vercel. // WHY I MADE IT I’ve been enjoying getting back to my technical roots, as I lost my coding skills more than a decade ago, but with AI I can focus on the system and the product in partnership with agent coding workflows. I recently built a Voice AI for older people. To build it I created an agentic engineering workflow (feel free to rip that up as I’m always looking to improve systems: https://ift.tt/QPNaX1Z ) My approach with coding agents is trust but verify, and I’m trying to replace the parts where a human would review with an adversarial or specialized agent who would give a better answer/review. I have workflows that will go high level task to shipped PR running in Claude cloud sessions. I use Claude Code locally and Cursor when I want a tighter loop on doing visual work like UI or layout. And Codex to either load balance usage for TokenThriffting or when I want a different llm to think thru something. It was a pain in the ass passing .md files around and keep track of which version was the most recent, so I built a hosted .md storage right in Supabase and any of my agents already have Supabase access. This let me build a solid, scalable, secure voice AI from my phone at the gym. All my agents have access to our knowledge, can write to it, update and refer to it as we build and improve the product and the systems we use. Out of 75 founder friends I asked about how they manage shared knowledge, 26 built their own custom knowledge systems… Obsidian vaults with 7k files synced through a VPS, markdown repos behind their own MCP servers, cron jobs stitching Supabase to a skills file… each a different Frankenstein they have to maintain. 32 said they felt the pain of moving static files around but didn’t have any solution for it. So I rebuilt my brain better and used it to build it. // HOW YOU CAN HELP Would love to have you try it out. The maintenance loop is still in alpha so not running it on customer data yet. If you built your own brain I’d love to hear how you did it. What criteria was most important for you in its design & function. If you are tired of shuffling .md files around I’d love to have you try out OzBrain and to give feedback, just ask your agent to put it in the shared bugs & features brain! Cheers! Bubs.co https://ozbrain.com August 22, 2026 at 03:09AM

Show HN: Traccia - Observability, Runtime Control & Audit for agents https://ift.tt/izQqE7d

Show HN: Traccia - Observability, Runtime Control & Audit for agents AI applications are becoming agents, which has started to take autonomous decisions. There are plenty of tools and platform available to trace, and observe what an agent or llms calls does. They are good in what they do, but tracing and observability isnt enough for AI agents era. We need a solution that can help you observe, evaluate, create run time policies to govern and finally audit the actions of the agent. We built Traccia to solve this problem. The good part, all of these can be achieved by just writing few lines of code. Traccia has an open-sourced sdk that can work with your existing observability tool like grafana, tempo, jaeger, etc. In case you need more than just observability, Traccia provides the platform to evaluate, control and audit the agents. The platform is easy to use. The product's documentation is quite extensive. It is also cloud vendor and framework agnostic. Traccia is being built by an Indian start up ,based out of Bengaluru. We are running a 3 months free trials so that you can explore without any strings attached. We are open to improvise and get better so please drop your comments and feedbacks. https://traccia.ai/ August 21, 2026 at 10:20PM

Show HN: CSVtoTable – turn a CSV/XLSX into one self-contained HTML file https://ift.tt/GQ2U5ei

Show HN: CSVtoTable – turn a CSV/XLSX into one self-contained HTML file https://ift.tt/Qiwx5eV August 21, 2026 at 10:53PM

Show HN: Huzzah – a novel approach to coding with AI https://ift.tt/d9bILxf

Show HN: Huzzah – a novel approach to coding with AI Hello everyone. I've been working on this experimental editor called Huzzah. I've been working almost exclusively with coding agents since January of this year, and over the past few months I began to feel utterly exhausted by them. They're great, but I'm finding it more and more tedious to write full sentences for every change I want. Not only that, but it seems there's a complexity limit for codebases - beyond a certain point the agent begins confusing itself. I'd like to go back to writing code, but I don't want to go all the way back to fully manual coding. So I've come up with this interaction paradigm where you: 1. write pseudocode in whatever way makes the most sense to you 2. on save, the editor synchronizes your work to real source code 3. the pseudocode is persisted alongside the generated code, making your prompt effectively a stored record of intent. It may not work for every use case, but in my initial playthroughs I've found it very enjoyable. Right now it's just a proof of concept - installation instructions are here in the readme: https://ift.tt/teKZjb2 You can also watch a video of it in action here: https://ift.tt/Sw5RZIm Cheers! https://ift.tt/cPT1pj6 August 20, 2026 at 11:05PM

Show HN: HyperSAE – Sparse Autoencoders, reimagined in hyperbolic space https://ift.tt/R5yTB6L

Show HN: HyperSAE – Sparse Autoencoders, reimagined in hyperbolic space https://ift.tt/eYRXSoV August 20, 2026 at 12:07AM

Show HN: terminal-code – VS Code inside the terminal https://ift.tt/CVXDKsn

Show HN: terminal-code – VS Code inside the terminal https://ift.tt/gfZBMFp August 19, 2026 at 09:13PM

Show HN: Voidleap Code – agentic IDE, own harness, swap models mid-conversation https://ift.tt/oxN65eG

Show HN: Voidleap Code – agentic IDE, own harness, swap models mid-conversation We wanted to build a development environment that can make you a better agentic engineer, not a tool that makes money when you waste tokens. A tool where you can swap models between turns, edit the context, and see every agent action. To do it, we had to build our own harness. Free to use. We don't sell inference, so bring your own key. The sore spot is Claude subscriptions. We can't support them because of Anthropic's terms. The app runs on your machine, and your data never touches our servers. We've been building Voidleap Code using Voidleap Code since January. We didn't rush to launch, but instead focused on getting the architecture and package just right. There are still more features to build, and more polishing to do, but it's ready for you to try. Judge it for yourself and tell us what you think. https://voidleap.com/ August 18, 2026 at 10:40PM

Show HN: Classifier and browser extension to detect rule violating HN comments https://ift.tt/5N7Bfqt

Show HN: Classifier and browser extension to detect rule violating HN comments I love HN, but lately I have been sick of reading the same dismissive criticisms over and over again. Along with political arguments that have been litigated to death, people's issues with smooth scrolling on blogs, etc. Many of these comments do not get flagged for whatever reason. So I made a service to automatically classify whether comments violate (a modified form of) the HN guidelines automatically. In addition there's a Chrome extension to collapse these comments (if they violate your score thresholds) so you don't have to read them too. You can also just watch guideline violating comments as they are posted on the home page. Here's more info on how it works: https://ift.tt/zcqLXTQ https://ift.tt/kuvNeQ0 August 17, 2026 at 08:04PM

Show HN: Tesana – An AI game engine that builds quality games end-to-end https://ift.tt/Km3LMhA

Show HN: Tesana – An AI game engine that builds quality games end-to-end Hey HN! I built https://tesana.ai/en , a game generation platform that allows anyone to create full games with graphics, game logic, and animations from a simple text prompt - without coding. Tesana has three key features 1. describe your game idea and have Tesana write a game plan for you 2. Build the game iteratively with AI, or let AI self-build the game in a build LOOP. 3) Launch the game on the web, without setting up an engine Tesana has 250 000 builders on the platform today I believe the democratization of game making is a good thing, and hopefully Tesana can help more people bring their game ideas to life. Happy to chat about the AI or dev stack behind the product. Let me know if you have any questions/comments/feature requests! https://tesana.ai/en August 17, 2026 at 09:39PM

Show HN: Tidy – a Mac app that names files by reading what's inside them https://ift.tt/eMKvC29

Show HN: Tidy – a Mac app that names files by reading what's inside them https://ift.tt/EGJWM9H August 17, 2026 at 11:09PM

Show HN: A visual ping utility that is pretty https://ift.tt/I2re6u4

Show HN: A visual ping utility that is pretty As a network engineer, I use ICMP every day. The default ping utility is ugly, I used a prettyping instead. But it got some bugs, isn't configurable and need bash. So I made my own. I hope it will help some other IT guy. For reference, prettyping: https://ift.tt/AWUBzvm https://ift.tt/yswKiVH August 17, 2026 at 03:50AM

Show HN: PageSieve, a web scraping browser extension https://ift.tt/repP0mD

Show HN: PageSieve, a web scraping browser extension PageSieve[1] is a browser extension for scraping data from different websites from within your browser. Currently it's Firefox only but I am open to porting it to other browsers if that's something people want. My original motivation for this started with a desire to improve the capabilities of the selectorgadget[2] bookmarklet to support extracting as well as finding selectors. The ideal use case is when some data you need is useful but you don't want to spend the effort of writing a one-off script to extract it especially nowadays when a lot of websites need an entire JavaScript environment to load correctly which complicates scraping. Using this extension means you only need to maintain the selectors for extracting the data and don't need to worry about managing dependencies. As long as the website can be opened in your browser you should be able to scrape data from it using the extension. I have a lot of features planned as well as some rough edges that need smoothing. I use this extension nearly everyday and I hope it can make somebody else's work easier. Take a look and let me know what you think. [1]: https://julius383.github.io/PageSieve/ [2]: https://ift.tt/fE7xP1U https://julius383.github.io/PageSieve/ August 16, 2026 at 05:45PM

Show HN: Interactive component to map fibre breaks (OTDR) https://ift.tt/zdQKpev

Show HN: Interactive component to map fibre breaks (OTDR) Added an OTDR trace component as the latest in my component library for datacentre/network apps. Mainly for my own use in rackout. https://ift.tt/rNtH9k4 August 17, 2026 at 12:47AM

Show HN: Hacker News Top Stories as Feeds to Use with RSS/Atom with Summaries https://ift.tt/usE9gnY

Show HN: Hacker News Top Stories as Feeds to Use with RSS/Atom with Summaries Hey all, I’ve made this bot, it fetches every story that enters the HN Top 10, summarizes it with AI to a tweet-sized textlog note and publishes it. textlog.cc offers these endpoints as RSS/Atom through textlog.cc/u/hn10.rss and textlog.cc/u/hn10.atom so you can subscribe easily. Enjoy! https://textlog.cc/u/hn10 August 17, 2026 at 12:01AM

Show HN: Bribes.fyi – Compare bribes statistics department wise https://ift.tt/rGfXFiN

Show HN: Bribes.fyi – Compare bribes statistics department wise https://ift.tt/G15gRJS August 16, 2026 at 02:11AM

Show HN: ElevenMusic Sounds, loop library that grows as other people generate https://ift.tt/OfXitjP

Show HN: ElevenMusic Sounds, loop library that grows as other people generate https://ift.tt/BysYa07 August 16, 2026 at 02:22AM

Show HN: Live Claude Usage HUD for a $38 Thermalright Trofeo Vision LCD https://ift.tt/3u2ZzHF

Show HN: Live Claude Usage HUD for a $38 Thermalright Trofeo Vision LCD https://ift.tt/B9E4eVa August 16, 2026 at 01:42AM

Show HN: Every MUNI, BART and Caltrain in SF on a Live Map https://ift.tt/hfpu6Qr

Show HN: Every MUNI, BART and Caltrain in SF on a Live Map https://ift.tt/nXdZF3W August 15, 2026 at 11:09PM

Show HN: Mole – Deep research agent for your terminal https://ift.tt/389t1vx

Show HN: Mole – Deep research agent for your terminal Doing research with agents is fun until they blow way past budget, jumble the sources, and don't even give you the best possible answer, just sound confident. And if you want to run some research task on local data - you have no idea where your data ends up after the prompt consumes it. So I built this tool: a deep-research agent with an enforced budget, verified quotes, and a privacy boundary for local data. 1. Never spend more than you budgeted (measured overshoot is 0%). 2. Every claim carries a source 3. Data stays local (give a CSV, it'll analyze it without the data ever leaving your machine) Works with most LLMs, including coding agents, subscriptions, local models, etc. It's free and open source, would appreciate all feedback! https://ift.tt/j8XJA0l August 14, 2026 at 10:52PM

Show HN: OxiSH, a modern, memory-safe SSH server https://ift.tt/EWP3anD

Show HN: OxiSH, a modern, memory-safe SSH server https://ift.tt/Lts4pqD August 13, 2026 at 07:36PM

Show HN: WindStrap – Bootstrap 5.3.8 to Tailwind CSS Using DeepSeek V4 Flash https://ift.tt/Owq6BTo

Show HN: WindStrap – Bootstrap 5.3.8 to Tailwind CSS Using DeepSeek V4 Flash bootstrap to tailwinds using DeepSeek V4 Flash https://ift.tt/5rW0uh6 August 13, 2026 at 03:08AM

Show HN: Programmable timer web app (for gym workouts or stretching sessions) https://ift.tt/BLJFcWe

Show HN: Programmable timer web app (for gym workouts or stretching sessions) Over the last couple of months, I’ve been building a timer web app for myself that I use for workout and stretching sessions. My main use-case is gym routines that consist of repeatable sequences, e.g. where you are holding certain positions for a set time (rinse and repeat). The app counts down the program, beeps, and reads the activities out loud. Two things (I suppose) are special about it: - The timers are “programmable”, so you can freely express your own routines and procedures in a declarative notation. - The app is all static (no backend): the entire program is encoded in the URL and can be bookmarked or shared/transferred via QR-code. You can check it out at https://ift.tt/OcPiB8w , optionally with a demo program pre-loaded: https://ift.tt/N8IxEZH . Source code is at https://ift.tt/RdxLhYp . I’ve also written up a small behind-the-scenes on my blog: https://ift.tt/c7HN24i https://ift.tt/OcPiB8w August 12, 2026 at 10:27PM

Show HN: Mooneva Cycle – Offline period tracker with no servers and no accounts https://ift.tt/uK1YHzh

Show HN: Mooneva Cycle – Offline period tracker with no servers and no accounts Data stays encrypted on your device (PBKDF2/AES-GCM), no internet permission, nothing to breach or subpoena. GPL-3.0, TypeScript/React + Capacitor. Android & iOS. https://ift.tt/ISFt4BA August 12, 2026 at 11:10PM

Show HN: Pulp – Zero-allocation C11 telemetry engine (28M logs/SEC to disk) https://ift.tt/iNv4JIQ

Show HN: Pulp – Zero-allocation C11 telemetry engine (28M logs/SEC to disk) https://ift.tt/I0p6KcG August 11, 2026 at 10:45PM

Show HN: My local climbing gym from photogrammetry https://ift.tt/EQPy23D

Show HN: My local climbing gym from photogrammetry Commented on yesterday's Ask HN: What are you working on? (August 2026), thought I might as well submit a Show HN. If you see climbing world cup/championship, there is this 3D modelling thing [1]. I want that for my weekly bouldering. I scanned my local climbing gym into 3D mesh using iphone. Built a simple editor to trim, merge, move/rotate meshes. You can interact with the mesh, view routes, view climb, etc. So this is unlike many gaussian splatting projects where the main use is for viewing. I built a pipeline in updating climbing walls. Climbing routes are manually annotated. Climbing videos are registered against the 3D mesh. Based on one input video, body positions resolved into 3D/4D space. you can view the body landmarks from different angle. COLMAP, OpenMVS, fastapi, svelte, database is just local json files. A read only build is exported so I can host on github page If you climb, or know someone who climbs, would love to hear your feedback. Do you usually record your climbs? If I make this a service, what will make you use it? [1] https://www.youtube.com/shorts/8zdUOaCr6DY https://kmcheung12.github.io/climb-preview/tour/ae43c6e5 August 11, 2026 at 01:39AM

Show HN: Graph2agent; Mermaid diagrams, explained for agents https://ift.tt/RUe3V0p

Show HN: Graph2agent; Mermaid diagrams, explained for agents During the implementation of a huge high performance service. In order to keep context small (mainly for humans) I kept the specs into mermaid diagrams. When communicating with humans; diagrams were easy to follow and to remember. But when I asked the agent to implement what's in the diagram, most of the times it failed. So I came into conclusion that agents are good into writing mermaid diagrams but they are not good into reading them. I built graph2agent in order to deterministically (without inference :) ) convert mermaid diagrams into digestible rich text for agents. examples: https://ift.tt/qrPV2Eg... This gave us 50% error reduction for any class of diagrams and 80% error reduction for sequence diagrams specifically. Also Input tokens increased on avg by 8% (which is expected) but Reasoning tokens dropped by almost 50%. You can use it either with MCP so agents can call it with any mermaid diagram, and also can put it in pre-commit jobs and run it on every PR so all diagrams are agent ready! I hope you like it! Let me know your thoughts! https://graph2agent.github.io/ August 11, 2026 at 01:29AM

Show HN: 100% native Swift harness (NOT Electron) https://ift.tt/FwDpfki

Show HN: 100% native Swift harness (NOT Electron) hi everybody, I’ve been working on this harness that is all native Swift for macOS. It’s fully featured with every feature i could find in cline, codex, and claude code. There is all swift command line too It’s taking me a long, long time, a few months to build this, and it’s fully open source Apache 2 licensed. Hoping people fork this and make many branches I’m looking for people who want to work on something that has much lower memory usage and much more potential to be just more efficient. Every other single harness has is written in using electron, so this harness is really unique in this way. It’s connected to trusted router so that it has end-to-end encryption confidential mode as well as access to hundreds of models, any model in the world. It works great with Deepseek. it’s great for swift development ios development. and for people who love Linux, I also made a compatibility layer that lets you compile SwiftUI into native Linux so that you either can new or QT actually so that you can just compile all the code directly and make it run on Linux https://ift.tt/QxaEG5T August 10, 2026 at 05:26PM

Show HN: Mandible TUI – rust based CLI manual viewer https://ift.tt/CFRGE9d

Show HN: Mandible TUI – rust based CLI manual viewer https://ift.tt/leMruPi August 10, 2026 at 12:32AM

Show HN: 35k+ paper psychedelic library that knows LSD from Lumpy Skin Disease https://ift.tt/KFMWx6V

Show HN: 35k+ paper psychedelic library that knows LSD from Lumpy Skin Disease https://ift.tt/TGV1fhM August 10, 2026 at 12:27AM

Show HN: Whetstone – 20 Claude Code skills, each distilled from one real failure https://ift.tt/NwszpvX

Show HN: Whetstone – 20 Claude Code skills, each distilled from one real failure https://ift.tt/qxKC2F9 August 10, 2026 at 12:07AM

Show HN: Alphabet Soup, a multiplayer game, build the longest word to win https://ift.tt/R1PiNCS

Show HN: Alphabet Soup, a multiplayer game, build the longest word to win I've been working on a simple multiplayer word game called Alphabet Soup. It's a bit like NYT Spelling Bee, except it's multiplayer and only your best (longest) word counts toward your score. So, instead of trying to find as many words as possible, the game is more about finding one unusually good word. You can play with friends in a private match, or, you can join a public Arena match to play against other players who are online. If no one else is around, you'll be matched with a bot. The game works well with just 2 players, but, also works with bigger groups since the game isn't turn-based. Would love to hear any thoughts or questions :) https://alphabetsoup.club August 10, 2026 at 12:15AM

Show HN: Inertia – Not your Grandfathers animation editor https://ift.tt/bFZQjaD

Show HN: Inertia – Not your Grandfathers animation editor https://ift.tt/qNVE9JR August 9, 2026 at 02:27AM

Show HN: A Discord bot running in a 4MiB microVM https://ift.tt/xfa2yzU

Show HN: A Discord bot running in a 4MiB microVM https://ift.tt/nARdEUG August 8, 2026 at 09:34PM

Show HN: Algebruh - Cross-check arithmetic claims with Z3, cvc5, and Lean https://ift.tt/LOBGQn8

Show HN: Algebruh - Cross-check arithmetic claims with Z3, cvc5, and Lean https://ift.tt/Wg1SAhU August 8, 2026 at 10:04PM

Show HN: Check if any of the $656M in unclaimed royalties at The MLC is yours https://ift.tt/rNizbdm

Show HN: Check if any of the $656M in unclaimed royalties at The MLC is yours https://pub.doub.ly/ August 7, 2026 at 09:35PM

Show HN: Zaivern Code – a Rust cockpit for parallel AI coding agents https://ift.tt/0gGZYQ4

Show HN: Zaivern Code – a Rust cockpit for parallel AI coding agents https://ift.tt/mDK71t6 August 7, 2026 at 11:23PM

Show HN: Mousecrack – Teaching an LSTM to move a mouse like a human https://ift.tt/Un7wYNb

Show HN: Mousecrack – Teaching an LSTM to move a mouse like a human https://ift.tt/mQycNEP August 7, 2026 at 08:53PM

Show HN: ARF – a record format for AI evaluation runs, with reproducible digests https://ift.tt/FOGiA6y

Show HN: ARF – a record format for AI evaluation runs, with reproducible digests https://www.korvo.xyz/arf August 7, 2026 at 03:25AM

Show HN: Learn System Design, one campaign at a time https://ift.tt/yJtka0b

Show HN: Learn System Design, one campaign at a time https://scalequest.io/ August 7, 2026 at 01:55AM

Show HN: Pokémon Emerald Ported to Raspberry Pi Pico 2 https://ift.tt/agA70RV

Show HN: Pokémon Emerald Ported to Raspberry Pi Pico 2 Pokémon Emerald ported to the RP2350 microcontroller. No emulator, 60 fps HDMI output. Recompiled from ARMv4T to Cortex-M33 and the Game Boy Advance's video hardware is reimplemented in software on the second core. https://ift.tt/3AirJyY August 7, 2026 at 01:49AM

Show HN: Ocean – All your team's agent sessions in one place https://ift.tt/4Jtgy8p

Show HN: Ocean – All your team's agent sessions in one place I spend a lot of time in Claude Code and Codex with my friend. We kept losing the context behind changes because every agent session lived on one person's laptop, and by the time code made it into a PR, all the reasoning was gone. We tried commits, PRs, and docs, but they only really capture the end result, so we built a tool to keep all of our agent sessions in one searchable place. Now we (and our agents) can check out anyone's session and ask things like "what was Alex working on yesterday?" It's also quite helpful in recovering the context behind a change days or weeks later. Ocean works with Claude Code, Codex, OpenCode, Hermes, Pi, and other agent harnesses. We've been using it every day ourselves and it's become a core part of how we work together. Hopefully some of you find it useful too! Try it out: https://ift.tt/rT1BF6A Demo: https://www.youtube.com/watch?v=sjyrgkRBWVg https://ift.tt/rT1BF6A August 5, 2026 at 10:18PM

Show HN: Maple-Preview – ternary 20B MoE running at 120 tok/s on a iPhone https://ift.tt/3mw6dIO

Show HN: Maple-Preview – ternary 20B MoE running at 120 tok/s on a iPhone https://ift.tt/amr5wX2 August 4, 2026 at 11:44PM

Show HN: My tool scanned 256 AI-built apps and most had exposed credentials https://ift.tt/r6taJpn

Show HN: My tool scanned 256 AI-built apps and most had exposed credentials All of a sudden everybody wants to build with AI. People in hell want ice water. Built something with AI and don't know if it's secure? Try necktochoke. https://ift.tt/kyex9NY August 5, 2026 at 12:12AM

Show HN: TormentNexus – Local-first Go control plane with persistent memory https://ift.tt/lA9Rz7w

Show HN: TormentNexus – Local-first Go control plane with persistent memory https://tormentnexus.site August 4, 2026 at 11:17PM

Show HN: Spellfolio – my stock market game with news events and inside info https://ift.tt/z470TB2

Show HN: Spellfolio – my stock market game with news events and inside info https://ift.tt/ykRKvNg August 4, 2026 at 02:38AM

Show HN: Freqcast, an Android radio player that finds streams from a website URL https://ift.tt/iFXVgT6

Show HN: Freqcast, an Android radio player that finds streams from a website URL Hi HN! Not every internet radio station is listed in a directory like Radio Browser. For a lot of them, the only way to actually listen is to dig the stream URL (.mp3/.aac/.m3u8) out of the station's website by hand — and that's before you even find a player that isn't full of ads or locked to its own catalog. Freqcast lets you paste the station's website instead of the stream URL directly. It first checks the Radio Browser catalog, then scans the website itself, discovers a playable stream, verifies that it works, and adds it to your library. In many cases, you never have to hunt for the URL yourself. No ads, no tracking, no account — everything lives locally in the app. Your station list can be exported as JSON, and imported from JSON, OPML, M3U, or PLS. No Play Store listing — grab the APK from Releases. F-Droid submission is in progress. Would genuinely love feedback! https://ift.tt/IUv6e4X August 4, 2026 at 01:35AM

Show HN: Golars (Go Equivalent of Polars) https://ift.tt/V6lD9xM

Show HN: Golars (Go Equivalent of Polars) https://ift.tt/4ZHWENT August 4, 2026 at 12:00AM

Show HN: Make your Framework 12 sound like a creaky door https://ift.tt/vQklV8z

Show HN: Make your Framework 12 sound like a creaky door I was poking through the iio devices on my Framework the other day and turns out Framework 12s have a pretty accurate hinge angle sensor! So I made a version of LidAngleSensor ( https://ift.tt/zSnBAXC ) but for the Framework 12 on Linux, so you can make your hinge sound rusty https://ift.tt/sYjL6d3 August 3, 2026 at 12:33AM

Show HN: My public second brain – 660 notes, 15 years, open source https://ift.tt/DFH6d9C

Show HN: My public second brain – 660 notes, 15 years, open source Author here. ~660 notes published from a private Obsidian vault of 8,360 (3M words). Started in OneNote around 2011, moved to Obsidian in 2021 [1], imported everything with a Python script [2]. Notes are compounding over time, and that is where my writing comes from. The Semantic Layer note started in 2022, became a four-part blog series, then a chapter of my book. Materialized Views, One Big Table, dbt and OLAP were separate notes written years apart. I only later noticed they were the same pattern, and that became another chapter. Publishing: add #publish to a note, run `make deploy`. Quartz + Hugo, rsync to my own server [3]. Code [4]. Semantic search over the graph [5]. [1] https://ift.tt/avzfsTp [2] https://ift.tt/TaZIo9u... [3] https://ift.tt/5bV69oq [4] https://ift.tt/Bo5NQuI [5] https://explore.ssp.sh https://ift.tt/HR3ziPS August 2, 2026 at 11:42PM

Show HN: SteerPlane – Deterministic runtime guardrails for AI agents https://ift.tt/PCApMDt

Show HN: SteerPlane – Deterministic runtime guardrails for AI agents https://ift.tt/zxINBSX August 1, 2026 at 10:09PM

Show HN: GAI – A Go runtime for typed, tool-using LLM agents https://ift.tt/ENyfhQj

Show HN: GAI – A Go runtime for typed, tool-using LLM agents https://ift.tt/dyWb4Gx August 1, 2026 at 02:53AM

Show HN: Offline Flock Navigation https://ift.tt/iAke3Tr

Show HN: Offline Flock Navigation Hello HN! A little side project I have been working on a fork of OsmAnd with offline ALPR/Flock camera avoidance routing. Also, took the time to at least create a paper on the project as well. https://ift.tt/eRPNa57... And yes, I did use AI to help me with this. All of it open sourced and available for use. Though I don't intend to build Apple version of this, or submit it to the play store. I am looking for feedback! Thank you all and have great weekend. :) https://ift.tt/xJ3mBn0 August 1, 2026 at 12:10AM

Show HN: How to build and self-host a code review agent https://ift.tt/MShdcFg

Show HN: How to build and self-host a code review agent Hey HN, I've had a side-project that I've slowly ticked away at over the last year called Tilde. Tilde is a harness SDK platform - I've tried to take the best things of OpenClaw, Hermes & other harnesses and decompose them and make them available as cloud API building blocks. You can use Tilde to create AI agents for your use case, fast and self-host the agent's yourself. The documentation (and attached blog post) leave a lot to be desired in terms of technical documentation but hopefully the attached git repo does a good job of showcasing the API. https://ift.tt/lzL8JEH https://ift.tt/iaZhJmN August 1, 2026 at 12:27AM

Show HN: Local text, image, video, music and 3D from one CLI, no Python https://ift.tt/4Kw3ag6

Show HN: Local text, image, video, music and 3D from one CLI, no Python Hi HN! I'm the author of mere.run a local first inference runtime built around an installable CLI. I believe that whenever possible we should use the stuff we already own (like our Mac laptops, decent machines gathering dust, our gaming PC) and the limited electrical power we have easy access to, like the socket in the wall next to most of us. We shouldn't have to send our data to the cloud hoping some T&C will prevent it from being used in a way that we'd regret. Most of the local AI solutions are technical, involved, and land a curious body in some package hell. People are optimizing for one system and not another, the fun stuff is on PC if you own a Mac, and on Mac if you own a PC. So mere.run was my choice to begin to patch many of those things that I saw as problematic. Text, chat, code, image gen, speech tts+asr, vision (caption/ground/segment/track/pose/depth/face/OCR/etc), music, sfx, video, 2d->3d, persistent worlds, lora training plus a few more things I am probably forgetting all in one place to work the way you work, with a scriptable CLI, an openAI compatible serve, and optionally a native app on Mac. It's native swift on MLX, no python, PyTorch, diffusers for inference. For text lanes with GGUF it uses llama.cpp and for a/v muxing its FFmpeg. Most upstream releases that don't have an MLX variant are converted offline and hosted on huggingface. All release packages are built for arm64 (Mac & Cuda) plus x86. They're signed and ship SHA256SUMS. No windows at the moment. > mere.run model capabilities --recommended # That inspects your machine before recommending to prevent pulling models that don't fit your spec There's a workflow layer with typed, validated graphs so you can create immutable job bundles and run them locally, over an ssh executor or using a fleet of machines and the relay service. (It's hosted at relay.mere.run and is currently invite only while I test, but its also totally open MIT so you can set it up yourself) The whole runtime is MIT along with the companion packages, models carry their own licenses and the CLI makes it clear when something has specific terms. Once you've pulled the models, everything works fully offline. I've been working on a (hopefully) comprehensive docs -> https://docs.mere.run No account, no API key, no analytics or phone home. Any network calls in the source are all at your request only like huggingface.co (models), GitHub.com (Pi install). I'm just getting started, but it's finally at the point I'd love feedback, contributions, and just folks to generally find it useful. I hope it helps you make things and explore what's possible with the stuff you've already got in your home. Would love any thoughts, questions, ideas and maybe a star if you do that kinda thing. -Kyle https://ift.tt/Pg90sjX July 30, 2026 at 05:25PM