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Show HN: Ghanaian street games you can play in the browser

Show HN: STE80 Humanizer – de-AI text by writing 80% of the way to ASD-STE100

Show HN: Valencia, Spain in Sim City/Isometric View

Show HN: A 15 MB self-hosted Netflix and Spotify for your media server

Show HN: Get your coding agent off ~2019 JavaScript, onto modern web primitives

Browsers natively handle a lot of what used to take 50 lines of JS (or a dependency): `CSS.highlights` for text range highlighting without <span>s everywhere, `<dialog>` and showModal() give you backdrops and ideal focus management, `field-sizing` to auto-grow textareas as the user types.. (Something yesterday's ftrain post touched on [0])<p>Models know about some of these by name, but consistently won't default to using the platform-native solution and instead prefer the incumbent <div>+JS based pattern. We started an effort in Chrome to supplement coding agents with this key domain knowledge and we're shipping our 1.0 today, in collaboration with Firefox, MDN, and Edge.<p>200+ guides (~1.7MB) of curated, hand-crafted implementation best-practices from web experts, updated as the web evolves. (Open source, obv, so.. we'll welcome your bikeshedding ;) Readable versions here: [1]<p>I've spent the last 9 months obsessing over how to ship this as an agent skill + (Agentic RAG) CLI without blowing up your context window. (Or cedeing activation mechanics to MCP dynamic tool search). The skill description is minmaxed for activating on relevant frontend tasks. The RAG work I'm pretty proud of… originally a 500mb native stack down to a ~7MB pure-JS package, ~10ms search on your CPU.<p>We just introduced a deterministic 'legacy-scan' (trained on 30k github repos) to identify old 'n dusted patterns that your agent can modernize. (92% avg precision on held-out repos.)<p>People make a lot of claims about what coding agents are good/bad at. We wanted receipts, so we invested heavily in eval infra [2] to help us hill-climb, but also to identify when knowledge is common enough we can prune our guides. (Ofc, some of the things we thought AI didn't know turned out to be wrong :) We run codex/claude/agy against 200 tasks without the skill and then with.. In total ~1,700 playwright/AST-based assertions. Agents go from 55% pass unguided to 92% guided.<p>Try it out:<p><pre><code> DISABLE_TELEMETRY=1 npx modern-web-guidance@latest install DISABLE_TELEMETRY=1 npx modern-web-guidance@latest search "animate dialog modal" DISABLE_TELEMETRY=1 npx modern-web-guidance@latest legacy-scan ./src </code></pre> If you spot something wrong or weird, give us a holler!<p>Longer write-up on the 1.0: <a href="https://developer.chrome.com/blog/modern-web-guidance-v1" rel="nofollow">https://developer.chrome.com/blog/modern-web-guidance-v1</a><p>---<p>0: <a href="https://news.ycombinator.com/item?id=50416456">https://news.ycombinator.com/item?id=50416456</a><p>1: <a href="https://developer.chrome.com/docs/modern-web-guidance/guides" rel="nofollow">https://developer.chrome.com/docs/modern-web-guidance/guides</a><p>2: <a href="https://googlechrome.github.io/modern-web-guidance-src/" rel="nofollow">https://googlechrome.github.io/modern-web-guidance-src/</a>

Show HN: JavaScript web apps with WASM layout and GPU rendering in 280 KB

Over the past year, I have been working to find a better way to write cross-platform apps.<p>The problems I am trying to solve:<p>- Native frameworks only work on a subset of platforms, so a different implementation of the UI needs to be written per target. - They are updated at the same pace as the platform itself, which forces the developer to split the user base to be able to use new features, or wait a long time for bugs to get fixed. - They also force developers to use specific high-level languages, so they are not a good fit for apps with high performance requirements, like creative apps or games. - Cross-platform frameworks that rely on bundling a browser engine solve the problem of code reuse, but they inherit the limitations of HTML/CSS. - Those that take control over layout and rendering are not efficient and lightweight enough to be used on the web, and require the use of compiled languages.<p>Ideally, we would be able to bundle the UI framework directly with the application. This would allow developers to use new features and fix issues in the UI framework immediately. It would also allow ideas for improvements to compete in a natural way, rather than being decided by a committee.<p>Uniform is my idea for how we can solve these problems. This is the structure:<p>- A layout and rendering engine written in C, compiled to WASM on the web and native code on all other platforms - A JavaScript API where each function call gets forwarded directly into the core, for best performance and efficiency - A native runtime (<2 MB) that makes it possible to run the same JavaScript code on macOS and iOS (more platforms to come). The runtime can also generate packaged apps to upload to app stores. The packaging steps are also described in JS.<p>Uniform supports very fast iteration cycles via hot-reload on all platforms. Even on iOS, the JS source code of an app can be changed while the app is running. Changes are visible on the next display refresh. No connection to a computer or the internet is required. Apps can be written from scratch on a phone, with native performance.<p>The readme in the linked repository includes many examples and a detailed explanation of the core ideas. It is handwritten without any use of AI.<p>And here is a live demo: <a href="https://raffk.com/hn-demo/" rel="nofollow">https://raffk.com/hn-demo/</a><p>It should work in any browser that supports WebGPU. (To get 120 Hz support in Safari, the “Prefer Page Rendering Updates near 60fps” feature flag needs to be disabled.)

Show HN: Someone Was Here – Find out who used your Mac while you were away

Many thanks to my ex for inspiring my new MacOS app, Someone Was Here.<p>It takes a photo of whoever uses your Mac while you're away, whether you left it unlocked or they know your password, and sends their photo to your iPhone if the face isn't yours.<p>I built Someone Was Here as a menu bar app making use of Apple Vision and a local face recognition run via Core ML. It all runs locally on your Mac with no tracking or ads.<p>Real-time remote alerts are available via one-time $4.99 lifetime purchase via the free companion iPhone/iPad app, Pushover, ntfy, Telegram or a webhook.

Show HN: MeowDisplay Is iPhone Mirroring, but in Reverse

Hey HN and Cats, thank you for checking this out!<p>Github: <a href="https://github.com/raiseCatError/meowdisplay" rel="nofollow">https://github.com/raiseCatError/meowdisplay</a><p>EDIT 2: I should've mentioned that MeowDisplay started as a fork of OpenDisplay: <a href="https://github.com/peetzweg/opendisplay" rel="nofollow">https://github.com/peetzweg/opendisplay</a> which provided the foundational screen capture, virtual display, encoding and iPhone/iPad receivers. I've since taken it in a more phone-first direction, with work on the interaction, streaming and security layers. I've credited OpenDisplay and its developer Philip in the README under "Built on OpenDisplay".<p>MeowDisplay is my take on the control your Mac from your phone scene. Available on iPhones, iPads and Macs, with Android rn in closed testing.<p>The website has interactive illustrative demos if you'd like to see the app demonstrated.<p>I think MeowDisplay does a few things differently, some of which I prefer and you might too.<p>Such as Window view: allowing multiple tabs in split-screen type panes. Traditional Mirror/Extend views exist as alternatives. Floating windows: coming in the 2.1 release.<p>Touch input approaches: Direct Touch(Classic or Natural), experimental Smart Touch, and Trackpad mode alongside Apple Pencil support. Doesn't sacrifice display space for a trackpad, use all of the phone's screen with your preferred mode.<p>Stage Peek: shows a scrollable and searchable list of your Mac's windows on your phone along with an app drawer when you hold and pull on the left edge of your screen.<p>It's free and open source so you can try it and see if it's for you without having to commit to it or anything.<p>EDIT: I've used MeowDisplay during development whilst I was travelling between cities, left my acbook at home clamshell, powered, external display attached, and used it for small tasks remotely, it was pretty reliable even on a 5G network on a moving bus.<p>Meow, Jai

Show HN: MeowDisplay Is iPhone Mirroring, but in Reverse

Hey HN and Cats, thank you for checking this out!<p>Github: <a href="https://github.com/raiseCatError/meowdisplay" rel="nofollow">https://github.com/raiseCatError/meowdisplay</a><p>EDIT 2: I should've mentioned that MeowDisplay started as a fork of OpenDisplay: <a href="https://github.com/peetzweg/opendisplay" rel="nofollow">https://github.com/peetzweg/opendisplay</a> which provided the foundational screen capture, virtual display, encoding and iPhone/iPad receivers. I've since taken it in a more phone-first direction, with work on the interaction, streaming and security layers. I've credited OpenDisplay and its developer Philip in the README under "Built on OpenDisplay".<p>MeowDisplay is my take on the control your Mac from your phone scene. Available on iPhones, iPads and Macs, with Android rn in closed testing.<p>The website has interactive illustrative demos if you'd like to see the app demonstrated.<p>I think MeowDisplay does a few things differently, some of which I prefer and you might too.<p>Such as Window view: allowing multiple tabs in split-screen type panes. Traditional Mirror/Extend views exist as alternatives. Floating windows: coming in the 2.1 release.<p>Touch input approaches: Direct Touch(Classic or Natural), experimental Smart Touch, and Trackpad mode alongside Apple Pencil support. Doesn't sacrifice display space for a trackpad, use all of the phone's screen with your preferred mode.<p>Stage Peek: shows a scrollable and searchable list of your Mac's windows on your phone along with an app drawer when you hold and pull on the left edge of your screen.<p>It's free and open source so you can try it and see if it's for you without having to commit to it or anything.<p>EDIT: I've used MeowDisplay during development whilst I was travelling between cities, left my acbook at home clamshell, powered, external display attached, and used it for small tasks remotely, it was pretty reliable even on a 5G network on a moving bus.<p>Meow, Jai

Show HN: DBDelve – Open-Source DB Client Made with Rust and GPUI

Hi HN, I’m Shayan and a few months ago I started building a DB Client DBDelve with a focus on performance and just making something that feels good to use (in the spirit of Zed, Ghostty, and other tools that just feel pleasant to use).<p>For my workflow I’ve always looked for performance, especially since some time ago I had a really outdated machine and any kind of bloat was really noticeable, I remember using DBeaver and it just crashing on me multiple times, I also had to use postGIS which just made it worse. I migrated all my essential dev tools to use the ones with performance in mind (Zed, Ghostty etc) but the only thing that was missing was DB Client. The main choices everyone has are DBeaver which is a memory hog and an overkill for most of the tasks imo. The other options like Datagrid, Beekeeper, TablePlus are either electron based so bloated and memory hogs or paid and closed-source.<p>DBDelve 0.3.6 against DBeaver 25.3.1 on the same Postgres table, median of 5 runs each (2026-10-11, M1 Pro, 32 GB). Times are from the action to the rows rendered.<p><pre><code> DBDelve DBeaver Launch 1.1 s 5.2 s Idle memory 133 MB 606 MB 1,000-row query 0.21 s 1.96 s 1M rows, time 56 s 208 s 1M rows, memory [1] 4.9 GB 17 GB </code></pre> [1] The whole 1M-row, 100-column table pulled into memory on purpose, with the row limit off. Not a normal use case; DBeaver's heap limit had to be raised manually for the benchmark.<p>Scrolling perf with 1 million rows loaded with 100 columns each: <a href="https://youtu.be/V2MOhJYFqIE" rel="nofollow">https://youtu.be/V2MOhJYFqIE</a><p>It has most of the features most devs would need for 90% of their workflow plus some more I thought would be a nice touch: Readonly, read-write and Full Access modes Glass themes (If you’re into them, I am) Keyboard focused with every keybinding customizable Organization of connections into projects<p>Me and some other folks have been daily driving it for more than a month now and most good feedback comes on it having a really simple UI to navigate, very stable for its age and the performance of course. I’m also sharing here because those people tell me this has potential to grow so I’m trying my hand at distributing it.<p>Just want to give a huge shoutout here to the Zed team for GPUI, it's a breeze to work with if you just get through them not updating the crate officially on crates.io but the community has found the solutions for it, you just have to dig deep for it. It performs extremely well and just the HTML-like structure of it, makes it easy to understand for someone from a web dev background and agents are very good at writing it too. GPUI component also solves a lot of problems with having a good component library we can use. I think for anyone starting a GPUI project now, GPUI-kit makes a lot of sense, it just bundles GPUI, GPUI-component together and has some optimizations adding retained mode which is experimental but could provide a lot of benefit, so think all things considered it should be the default way.<p>The major optimization I did was just lowering the memory overhead by using packed rows which reduced the memory usage by 40% on large datasets (8.1GB to 4.9GB on a 4GB table loaded in app), everything else came bundled in with Rust and GPUI mostly or they just made it very easy.<p>Limitations: It's not signed and notarized, identity verification from apple's side has been a nightmare but it should be signed soon. Don’t expect feature parity with more mature clients for now, the general direction of this right now is the zed way of adding features in but after making sure the core workflows are done with a high quality.<p>Do give it a try, you can import your connections from dbeaver and tableplus.<p><a href="https://github.com/ShayanAbbas1/dbdelve" rel="nofollow">https://github.com/ShayanAbbas1/dbdelve</a>

Show HN: DBDelve – Open-Source DB Client Made with Rust and GPUI

Hi HN, I’m Shayan and a few months ago I started building a DB Client DBDelve with a focus on performance and just making something that feels good to use (in the spirit of Zed, Ghostty, and other tools that just feel pleasant to use).<p>For my workflow I’ve always looked for performance, especially since some time ago I had a really outdated machine and any kind of bloat was really noticeable, I remember using DBeaver and it just crashing on me multiple times, I also had to use postGIS which just made it worse. I migrated all my essential dev tools to use the ones with performance in mind (Zed, Ghostty etc) but the only thing that was missing was DB Client. The main choices everyone has are DBeaver which is a memory hog and an overkill for most of the tasks imo. The other options like Datagrid, Beekeeper, TablePlus are either electron based so bloated and memory hogs or paid and closed-source.<p>DBDelve 0.3.6 against DBeaver 25.3.1 on the same Postgres table, median of 5 runs each (2026-10-11, M1 Pro, 32 GB). Times are from the action to the rows rendered.<p><pre><code> DBDelve DBeaver Launch 1.1 s 5.2 s Idle memory 133 MB 606 MB 1,000-row query 0.21 s 1.96 s 1M rows, time 56 s 208 s 1M rows, memory [1] 4.9 GB 17 GB </code></pre> [1] The whole 1M-row, 100-column table pulled into memory on purpose, with the row limit off. Not a normal use case; DBeaver's heap limit had to be raised manually for the benchmark.<p>Scrolling perf with 1 million rows loaded with 100 columns each: <a href="https://youtu.be/V2MOhJYFqIE" rel="nofollow">https://youtu.be/V2MOhJYFqIE</a><p>It has most of the features most devs would need for 90% of their workflow plus some more I thought would be a nice touch: Readonly, read-write and Full Access modes Glass themes (If you’re into them, I am) Keyboard focused with every keybinding customizable Organization of connections into projects<p>Me and some other folks have been daily driving it for more than a month now and most good feedback comes on it having a really simple UI to navigate, very stable for its age and the performance of course. I’m also sharing here because those people tell me this has potential to grow so I’m trying my hand at distributing it.<p>Just want to give a huge shoutout here to the Zed team for GPUI, it's a breeze to work with if you just get through them not updating the crate officially on crates.io but the community has found the solutions for it, you just have to dig deep for it. It performs extremely well and just the HTML-like structure of it, makes it easy to understand for someone from a web dev background and agents are very good at writing it too. GPUI component also solves a lot of problems with having a good component library we can use. I think for anyone starting a GPUI project now, GPUI-kit makes a lot of sense, it just bundles GPUI, GPUI-component together and has some optimizations adding retained mode which is experimental but could provide a lot of benefit, so think all things considered it should be the default way.<p>The major optimization I did was just lowering the memory overhead by using packed rows which reduced the memory usage by 40% on large datasets (8.1GB to 4.9GB on a 4GB table loaded in app), everything else came bundled in with Rust and GPUI mostly or they just made it very easy.<p>Limitations: It's not signed and notarized, identity verification from apple's side has been a nightmare but it should be signed soon. Don’t expect feature parity with more mature clients for now, the general direction of this right now is the zed way of adding features in but after making sure the core workflows are done with a high quality.<p>Do give it a try, you can import your connections from dbeaver and tableplus.<p><a href="https://github.com/ShayanAbbas1/dbdelve" rel="nofollow">https://github.com/ShayanAbbas1/dbdelve</a>

Show HN: Flide: Make Jev-like decision models up to 9.5x faster

Decision models need their own inference engine.<p>So we developed Flide, a high-performance and exact inference engine for Jev-like decision models.<p>Flide achieves up to a 9.5x speedup over vLLM and SGLang.<p>It now supports 30+ popular local Jev-like decision models.<p>Start to make your decision immediately:<p>pip install flide

Show HN: Flide: Make Jev-like decision models up to 9.5x faster

Decision models need their own inference engine.<p>So we developed Flide, a high-performance and exact inference engine for Jev-like decision models.<p>Flide achieves up to a 9.5x speedup over vLLM and SGLang.<p>It now supports 30+ popular local Jev-like decision models.<p>Start to make your decision immediately:<p>pip install flide

Show HN: Every satellite that passed over any place this week, and its photos

hey HN, i built this because i wanted to know what had actually photographed my street.<p>type in any place and it finds every satellite that passed over it in the last 7 days (SGP4 on the CelesTrak catalog, runs in your browser in about half a second), then pulls the real Sentinel-2 / Landsat / NASA images from those passes.<p>some fun bits: - the pass search can't skip a pass. checked it against a brute force on poles, the antimeridian and tiny swaths: 0 missed - all ~17k objects in orbit are drawn on the GPU, solving Kepler's equation every frame - Sentinel-2 timestamps are often 5-10 min off from when the sat actually crosses your spot, which was a fun one to figure out<p>it only says "watched" if a real image exists, and it doesn't store your location.<p>code: <a href="https://github.com/dev-Armaan/satellites" rel="nofollow">https://github.com/dev-Armaan/satellites</a><p>would love feedback, especially on what data sources to add

Show HN: Every satellite that passed over any place this week, and its photos

hey HN, i built this because i wanted to know what had actually photographed my street.<p>type in any place and it finds every satellite that passed over it in the last 7 days (SGP4 on the CelesTrak catalog, runs in your browser in about half a second), then pulls the real Sentinel-2 / Landsat / NASA images from those passes.<p>some fun bits: - the pass search can't skip a pass. checked it against a brute force on poles, the antimeridian and tiny swaths: 0 missed - all ~17k objects in orbit are drawn on the GPU, solving Kepler's equation every frame - Sentinel-2 timestamps are often 5-10 min off from when the sat actually crosses your spot, which was a fun one to figure out<p>it only says "watched" if a real image exists, and it doesn't store your location.<p>code: <a href="https://github.com/dev-Armaan/satellites" rel="nofollow">https://github.com/dev-Armaan/satellites</a><p>would love feedback, especially on what data sources to add

Show HN: Maple – Sub-2-BPW Moe Pruning to Run Gemma 4 26B at 45 TPS on a 6GB GPU

A field guide to CAPTCHA types and how they break

Show HN: Where Were We

A little web game I made as an anniversary present for my wife.<p>Upload vacation photos and make them into a game.<p>WWW uses EXIF to determine where and when the photo was taken. This is then turned into a game you can send to anyone.

Show HN: Where Were We

A little web game I made as an anniversary present for my wife.<p>Upload vacation photos and make them into a game.<p>WWW uses EXIF to determine where and when the photo was taken. This is then turned into a game you can send to anyone.

Show HN: Vegetable Gardening for Engineers