Built for myself and my companies, OSS, maybe looking for a founder if anyone wants to make it be something, I got enough things to run heh.
Ask HN: What are you working on? (September 2026)
391–400 of 837 posts
Re: Ask HN: What are you working on? (September 2026)
#392https://curvefit.app it's a weight-training app that helps you train along your "pareto frontier" of weight vs reps. The idea is to train at lower weight-higher rep, medium weight medium reps, and higher weight, lower reps for every movement. I tried to develop my own weight training program following bits and pieces of advice from bodybuilding forums and ended up injuring several tendons in my first year. So I did a…
What exactly is your "research"? Is it reading more bodybuilder forums (bro science) or is it physiological studies (actual science)?
Re: Ask HN: What are you working on? (September 2026)
#393https://notifier.aicrew.in/setup
It renders markdown, screenshots, can send as audio, allows approval & free form reply when it direction.
iOS app - https://apps.apple.com/us/app/agent-notifier/id6763598043
Re: Ask HN: What are you working on? (September 2026)
#394Re: Ask HN: What are you working on? (September 2026)
#395Re: Ask HN: What are you working on? (September 2026)
#396Basically a simple pizza status tracker for small German fabricators and craftsman. You define the process, instantiate it per customer order who receives the link to a status page with a possibility to subscribe to status notifications as well. The benefit is that people don't call you anymore asking for the status of their order, saving time.
It's a pretty vanilla rails app running on a hetzner vps.
Re: Ask HN: What are you working on? (September 2026)
#397Updating a Rust renderer from WGPU 24 to WGPU 30. 640 lines of fixes needed so far, and more to do. I've fixed all the easy stuff, and now I'm down to reverse engineering breaking changes of excessive cleverness. I wonder if Claude Code could do this. That's a useful metric for the future - if a coding agent can't handle the breaking changes in a package upgrade, it's the package's fault. The day may come when that's…
It's impressive that you didn't reach for Claude Code first :) Would be good to keep track of how long it takes you to complete, so you can compare it with how long it takes Opus and then Fable to accomplish the same thing.
I should have. All I have right now is a free Cursor account and Github Copilot. I've got to start spending money on tokens and get up to date. That article today by Carmack chewing out game devs for hand coding was striking, considering who he is and how much low level stuff he has done.
I'm doing 3D rendering in Rust. (Think three.js, but in Rust.) This is well outside the mainstream, so there's not much on the web to populate training sets. A year ago, AI coding tools could not cope with this area at all. Today, maybe.
I have no idea how good Claude is at understanding breaking changes to an API. I expect it would get simple changes, such as structure field renamings, without any trouble. But the gyrations required to handle write only access to GPU memory in Rust might not appear in the training data.
Re: Ask HN: What are you working on? (September 2026)
#398Multi-org/Multi-team Software factory x Agent Sandbox with bring-your-own-harness model: https://xbin.dev Built for myself and my companies, OSS, maybe looking for a founder if anyone wants to make it be something, I got enough things to run heh.
Re: Ask HN: What are you working on? (September 2026)
#399MIT licensed and available on GitHub