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Ask HN: What are you working on? (September 2026)

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591–600 of 829 posts

Re: Ask HN: What are you working on? (September 2026)

#592
https://rapidcam.app CNC and laser CAD/CAM for both quick designs and full 2.5D parametric models. Free and runs entirely client side in the browser with no log in required.

The file format is open source, designed for LLMs and for source control. The app has a visual diff system built in.

I designed RapidCAM for me as none of the available options really met my needs. Happy to see that other people are now using it.

Re: Ask HN: What are you working on? (September 2026)

#593
https://github.com/madeinorbit/podium

A multi-harness orchestrator running agents on your VPS, with a built-in issue tracker (like Linear) and gas town like communication system.

Agents can split up big tasks themselves into subtasks, run each with a different harness and model and communicate so they keep running for days until everything is completed and integrated.

There's lots of tools in this space, but our combination of agent-focused issue tracker and agent-to-agent communication is quite unique and, for our use case, delivers an actually working software factory.

It's still a little rough around the edges but we'd be super happy for people to see if they get the same benefits out of it that we do. It's free and open-source.

Re: Ask HN: What are you working on? (September 2026)

#594
https://www.windowink.com

Simple digital signage without subscriptions. The goal was to help reduce some of the challenges with updating signage based on images and videos using low cost devices.

Started as a side project roughly when the PI3 model B+ was released. It wasn't until PI4 that it felt fluid and functional. PI5 devices are ideal configuration.

The memory price increases have made the devices too expensive to be called a low cost solution anymore.

Re: Ask HN: What are you working on? (September 2026)

#595
I've been working on a chat app for small groups as an alternative to chat apps focused on large, low-trust groups. I think people focus on "scaling" too much. I want to make software for groups no larger than Dunbar's number.

Anyhow it's basically just twitter but as a chat app. Everything is tag-based and there are no channels. Instead, users create and share lenses, which are just saved searches. That way, you can "speak in multiple channels" at once, or carefully filter out specific people or topics.

The best part is that I can speak, and then organize after the fact.

https://pipoca.chat

Re: Ask HN: What are you working on? (September 2026)

#596
https://tritium.legal

Tritium - the legal IDE for desktop and web.

We're building the document viewing and editing layer for a number of AI native law firm startups.

Web preview: https://tritium.legal/preview

WASM example: https://tritium.legal/wasm

We actually offer source access here, too: https://tritium.legal/source

Re: Ask HN: What are you working on? (September 2026)

#597

https://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…

> a bunch of research What exactly is your "research"? Is it reading more bodybuilder forums (bro science) or is it physiological studies (actual science)?

Check here: https://curvefit.app/methodology

Re: Ask HN: What are you working on? (September 2026)

#600
post #588

- Nand2Tetris part 1. It is a project-oriented course from the Hebrew University of Jerusalem (offered on Coursera) where you implement a whole 16-bit computer in a hardware simulator in a simplified HDL language, starting from a nand gate and ending with an ALU, RAM, CPU, program counter, and an assembler for the computer's assembly language. I only have two modules left before I finish part 1. In part 2 (which I di…

Nand2Tetris is great. Definitely one of, if not the, most impactful bit of education I’ve ever done it terms of knowledge imparted.

I am absolutely loving it!

I was very intimidated at first because the concept sounds very difficult, but Prof. Schocken and Prof. Nisan are amazing at breaking down the concepts and abstractions and making something complex very easy to follow and understand.

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