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

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371–380 of 771 posts

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

#371
I'm working on a new programming language for WebAssembly GC, called Zena: https://zena-lang.dev/

It's like a fixed up TypeScript specifically tailored for Wasm GC that can produce very small and fast binaries, but also has features like pattern matching, ownership / borrow checking for resources, pipeline, tail call elimination, multi-value returns, direct WASI component integration and a lot more.

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

#372

I run a small experiment on this: 29 paper-trading accounts on real US stock prices, $100k each, since July 27. Four AI models (ChatGPT, Claude, Grok, Gemini) each write a trading rulebook and rewrite it every day from their own results. One account is a fixed rulebook that no AI ever touches, as a control. Result so far (paper, 34 trading days): the no-AI control is +13.0%, the S&P 500 is +3.4%, and 25 of the 28 AI…

Why didn't you let the bots backtest and forward test to pick the mix of best strategies/indicators?

The problem is the bots may have some of the backtest data already in their training.

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

#373
A coding harness that works more like pair programming and less like code review:

https://www.opairdev.org/

It has 2 modes, driver and navigator, that work like the driver/navigator roles for a human/human pair. In driver mode, Opair is similar to other harnesses but with less autonomy for the agent. In navigator mode, Opair has no access to writable tools at all. Instead it monitors the project directory for changes as you make them in your regular editor, and comments on them in real time.

Why? Because big changes are harder to understand if you're not directly involved in working on them, and I want to understand the codebases I work with. I use it as my daily driver and it's perfect (for me). I recommend everyone should consider writing their own harness. When you spend so long working with something, it's nice to have it perfectly tailored to your needs.

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

#374

I’m building a website for discovering first names that’s enjoyable to explore: https://abracadanames.com It started with a family member telling me they were frustrated with existing websites. What I noticed is that in many cases they feel cluttered and not smooth to use, almost like a 1-to-1 translation of the underlying database queries, where they have you choose filters and sorting options upfront then browse th…

The lullaby is cute but extremely annoying after a while, give me a way to disable it!

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

#376
I’m very interested in building tools for coding agents (where I spend a lot of my time).

I’ve been building https://smalldocs.org, it’s a simply styled, but functionally deep, artifact layer for agents. It’s open source and free to use.

Because it can incorporate charts, diagrams, spreadsheets, etc. in one artifact, it’s good for creating (and optionally sharing) agent created analysis.

It has a local library for all your Markdown files, and a cloud library (my one paid feature) too. Both support tagging and rich search/filtering. I find it turns SmallDoc artifacts into little checkpoints in work I can easily circle back to.

Thanks for reading!

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

#379
post #200

I’m building https://www.freefocusgames.com , a free collection of browser-based attention and working-memory exercises, including Dual N-Back, Stroop, Schulte tables, attention-control exercises, and memory games. I started it because I wanted simple brain-training exercises that didn’t require an account, app install, or subscription. It’s also open source: https://github.com/loethen/freefocusgames

Just a heads up: The word memory test is case sensitive. My mobile phone defaults to capitalizing the first letter of those inputs, so the result was 0% accuracy despite technically remembering the words. I don’t know if case sensitivity is deliberate, but I chose not finish the test.

Sorrry about that! It definitely wasn't intentional - i've just fixed it. Thanks a lot for the heads-up!

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

#380
Been working on a note-based (rather than audio-based) AI music generator. Still very limited, perhaps I launched too early; it only generates somewhat generic melodies at the moment. Working on generating more interesting accompaniment tracks now, plan to then return to melody and adding some "style" settings.

https://tunesage.com

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