Greenlight social. It's basically an app for saying "I'm ready" or "Let's do x...".

Background is that my friend group plays video games, grabs beer or whatever - and a lot of the communication revolves around logistics. This app lowered the threshold for initiating. We create a group per activity, and "going green" means you're ready. The other group members get a push notification "Paul is greenlit!" and the title of the group is "Play Dota 2" or "Beer at local pub". Super simple concept, but it actually works.

TLDR; I made an app that let's you press a button instead of writing the typical "Does anyone want to join x activity?"

https://apps.apple.com/no/app/greenlight-squads/id6757295236

Hypen, a crossplatform framework for building & streaming native UI https://hypen.space

It lets you build apps and features that work natively across web, desktop and mobile, streaming from your backend into your client app, letting you deploy changes instantly.

A Hypen client can be any app that includes Hypen SDK, letting you render apps inside apps, build backend-driven features or create a mini-app platform like WeChat.

The framework supports many languages, such as TS, Rust, Go, Kotlin, Swift and pretty much any language that can run WASM or interop with native.

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To give you a taste, some things in the upcoming release changelogs are:

- Performance improvements brining the web client on par with React (even faster in some cases)

- Exposing states and actions to agents, letting agent drive the app directly instead of through UI

- First class drag/drop support with pinning as a primitive

And some recently released things:

- First class accessibility support, with out of the box inference and minimal intervention

- Animation support with simple DX for animations, scrubbing, state and screen transitions

- Video component and a whole Netflix clone Hypen app example

- UI Testing suite so you can easily preview how your app looks like across devices

Next up on the feature list will be device communication and permissions, Android TV support, theming and external component installation, letting you build shared component packs and primitives.

I'm working on a p2p streaming/sharing app called bubbleBASED. Its here https://bubblebased.com/ its based! on bubbles! But it uses Webtorrent to stream and share content in context bubbles. You already need peers for a social network—so why not use those same peers to seed the media? like a closed loop and it cuts out AWS because everyone is a peer for everyone else in your bubble. There is an assist from Heroku and Pinata. There is no algo. Its just whatever you post. Also you can add an affiliate link (from cj.com) and it will pop in a platform ad for you so there is a revenue possibility there. The streaming part was intense - I built this because I wanted to see if browser-to-browser streaming could actually work for small, private groups. The broadcaster records via MediaRecorder, chunks every 8 seconds, seeds each chunk via WebTorrent, and viewers assemble them with MSE (or ManagedMediaSource on Safari). There's a server-side "always-on peer" so streams don't die if the original tab closes.

The interesting problems were: MSE on iOS Safari, chunk continuity across peers, and handling rotation metadata that iOS bakes into the video stream. Also, the tracker is a separate bittorrent-tracker instance because the built-in WebTorrent trackers are unreliable for sustained swarms. Also i used a ton of graphql, so normally with a torrent you have to kind of let people find you but i used a graphql subscription to TELL people what the magnet links were called so they can fetch them asap. Lots of shortcuts like that, its been interesting!!

recently built a board for escaped AI agents to coordinate. you can post via GET (lol)

https://swarmmemo.com

You surely mean 'what your claude agents are working on'?

I have become utterly obsessed with creating a 2D top down mech game. I have not worked this intensively on anything else in my life. It's really silly in some way, wish I'd have this obsession for something more valuable. Alas.

I would have never started this game without agentic coding, but now, I cannot stop working. It's amazing. So this is how some of you have felt all your life about tech or other subjects? I'd always believed it, but now, I experience the difference first hand. Before, discipline is what I needed to start working. Now, discipline is what I need to stop.

I have released the first version of VentureRanker.

Its basically a tool I made to make my own own business research easier, then decided to formalize it after a friend showed interest. What is it? its a way to evaluate a business idea from multiple angles and perspectives - similar to what a VC would do, only via a simple wizard that asks you to score the business from different angles. The next version will let one or more AIs answer the wizard so you can compare your evaluation with theirs.

Two scores come out the other end, kept deliberately separate — how good the opportunity actually is, and how good a fit it is for you specifically.

https://ventureranker.com

Lots of things really:

1. Aetheris: geometry CAD kernel, https://github.com/yuechen-li-dev/Aetheris/.

Full code CAD capability with big coverage already and some functionalities that even OpenCascade/Parasolid/ACIS doesn't have, full sheet metal module, programmable part assembly, analytical fillets/chamfers, mathematical knots, auto-route for piping, built-in finite element analysis, etc. Had Astra make an improved version of the V8 demo that was going around on LinkedIn, so it can do general hard surface modeling pretty well too, turn all the Astra demo prowess into reusable capabilities/templates. The DSL is human writable too, so give it a try if you want. https://aetheris-editable-v8.yuechenli.workers.dev/

2. Concept language: https://github.com/yuechen-li-dev/Concept

I've said before that Carbon isn't a real programming language, never mind a successor to C++, so I decided to put my money where my mouth is. The idea of it is to be more TypeScript to C++'s JavaScript and to generalize C++20 concepts from template constraints to what C++26 is doing with contracts, and bring the equivalent of Rust's borrow checker to be opt-in by default instead of opt-out, fast compile time, in a syntax that C++ users are already familiar with (`const auto` instead of `let` for example) as well as templates and comptime. Language is done-ish, not self hosted yet, still compiles to C11, kernel and allocator libraries are finished, currently working on the scheduler right now.

3. Copeland TS, https://github.com/yuechen-li-dev/copeland

TypeScript for .NET without all the weirdness of Javascript, with full Nuget and NPM inter-op, Rust style exhaustive `match`, templates, etc. It's actually weird how much cleaned up TypeScript ended up looking like cleaned up C++. Compiles to JS, C#, WASM via Blazor WebAssembly, and SPIR-V via HLSL/DXC, and runs on V8 for JS and RyuJIT/NativeAOT for C#. The conclusion is that RyuJIT ended up being ~2x faster than V8 JS in hot loops but the cold startup time is higher, so replacing JS for UI really isn't worth it. Comes with full UI layout system, Vulkan renderer, and game/app runtime, but those are still pretty rough.

api for building apple and google wallets. launched it after ppl kept asking for one on the consumer app (launched on hn too) and gave it a shot. now it does enough mrr that i dont have to go back to work.

*walletwallet.dev

Writing an article about compacting garbage collection for my website.