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

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581–590 of 1001 posts

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

#582
I am trying to build a simulation that lets a simulated organism come up with its own small language, purely learned from sensory input: https://github.com/JoergStrebel/VirtualZoo/blob/main/compute... I would like to implement the ideas put forward by Stevan Harnad in his symbol grounding problem paper (Harnad, 1990).

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

#583
I'm working on [Context Bonsai][1] - LLM harness tools that allow the LLM to prune messages out of the context, leaving behind a summary and keywords instead. In addition to a "prune" tool, there is a "retrieve" tool that allows it to recall the messages if needed.

In addition to these tools, I'm also building automation that will port the tools from the reference implementation (OpenCode) to other harnesses (Claude Code, Cline, Pi, Gemini, Kilo, Codex, others to come?). As well as automation that will either cherry-pick or re-implement commits onto the latest head from upstream.

[1]: https://github.com/Vibecodelicious/context-bonsai-agents#con...

[2]: https://blog.vibecodelicio.us/posts/how-i-fixed-context-wind...

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

#584
European night trains search engine. The plan is not to provide the functionality where user searches for a specific route on a specific date and the engine returns prices. The plan is to provide "tips for trips", e.g. I provide a starting city and it will recommend me interesting trip ideas any time in the future. There are many flight apps that provide this functionality, but no train app.

Currently I'm building scrapers for all relevant provider, then I want to connect the data for multi-city trips recommendation. Plus some connection to the day trains so that the trips are built more easily.

Some existing trip recommendations:

Prague Amsterdam https://trainbot.eu/?from=prague&to=amsterdam&type=return

Berlin Paris https://trainbot.eu/?from=berlin&to=paris&type=return

Zurich Budapest https://trainbot.eu/?from=zurich&to=budapest&type=return

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

#585

* This is my first time actually posting anything on HN. I've been making a DSL for writing sheet music specifically for drums as raw text, inspired by ABC Notation (but of course just for drums). Now writing this I noticed that it's kind of complicated to explain and having a landing page would make my life so much easier. But the gist of it is, you write notation that looks like this: https://gist.github.com/Luigi1…

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

#586
I got my app in the Mac App Store! It's a layer based image editor, which as a developer has been a nerd's paradise to develop. How should disparate blend modes work with "merge down"? What does it mean to have one color channel selected when you move a layer? Should type layers use their Oriented Bounding Box or their Axis Aligned Bound Box with free transform? So much ambiguity to resolve and I'm loving it.

https://apps.apple.com/us/app/mojave-paint/id6759276677?mt=1...

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

#587
I pushed my first crate this weekend. You can `cargo install tailpipe` on macOS and Linux (and maybe Windows, haven’t tested there yet) and get a locally-hostable SSH server that plays back asciinema recordings to clients.

`ssh -p4242 tailpipe.clee.sh` for a quick demo without installing anything. Requires any valid RSA or ED25519 key.

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

#588
post #25

[NO-AI] Being a weightlifter for 20+ years now, I'm working on a barbell speed and path tracking sensor based on newer IMU hardware technologies, which makes it both more precise and cheaper than camera- or actuator-based systems. Ultimately it helps you lift and train safer and better. It's an intersection of industrial design, hardware, firmware, and software (and some sport science, of course). This intersection i…

I've had the same idea for year. When google released their Fitbit Air few days ago I the first thing I tought was - can it be used as a sensor for weightlifitng and do they have API for that.

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

#589

I’m building a blackjack card counting tool for people to learn how to count and how to identify games that are winnable. It is designed to take a completely novice to an advanced, winning card counter, using a Duolingo like approach - mastery based learning across sequential modules. Minus the ads and dark patterns.

that sounds cool
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