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

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301–310 of 914 posts

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

#301
I've been building Nottawa for ~4y now and it's finally out in the open!

Nottawa's a free macOS app for making live audioreactive visuals. I'm trying to position it as a 100% free, batteries-included alternative to Resolume and TouchDesigner.

Not a tonne of users yet, but I'm hoping to get some traction in 2026. Would love love love to hear some feedback!

https://nottawa.app/ https://x.com/joe_crozier

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

#303
https://citellm.com

Working on CiteLLM, an API that extracts structured data from PDFs and returns citations for each field (page + coordinates + source snippet + confidence).

Instead of blindly trusting the LLM, you can verify every value by linking it back to its exact location in the original PDF.

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

#304

I'm adding drug-development features, and polish to my open-source molecule viewer and editor, Molchanica: https://www.athanorlab.com/molchanica . Source code, in rust: https://github.com/David-OConnor/molchanica I've split out its building blocks into their own libraries on crates.io, for anyone building other bio or chem software. I don't think anyone uses them at this time.

Is Rust a common choice in this space?

No; I believe I am the only one doing this in the open. There are a handful of tools for bioinformatics, but am one of few building structural bio/chem ones.

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

#305

Built my own Spotify recommendation egnine after getting tired of Spotify’s repetitive recommendations. You get to choose the genres you're interested in, and it creates playlists from the music in your library. They get updated every day - think a better, curated by you version of the Daily Mixes. You can add some advanced filters as well, if you really want to customise what music you'll get. It works best if you f…

> you can get recommendations from artists that belong to playlists you follow or you've created Does this include the "Liked Songs" playlist? I'm terrible at actually following artists.

Unfortunately not. I oversaw that this was a separate scope when I requested my initial permissions for the app and am still to request an extension.

But if you have any kind of playlists - it would work.

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

#306
A specialized programming language for 3D geometry generation + manipulation called Geoscript as well as a Shadertoy-inspired web app for building stuff with it: https://3d.ameo.design/geotoy

There have been lots of cool technical challenges through the whole process of building this, and a very nice variety of different kinds of work.

I'm working towards using the outputs from this language to build out levels and assets for a browser-based game I've been dabbling with over the past few years.

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

#307

Spent about 2 years improving printing and scanning stack of Linux: CUPS, SANE, AirSane, as well as some legacy drivers, and also x86 proprietary driver emulation on ARM with Box86. Even that "modern" printing stack in Linux is 20+ years old, there's still such an unbelievable amount of basic bugs and low-hanging-fruit optimizations, that it's kinda sad. Not to mention that it still maintains ALL its legacy compatibi…

Thank you. I have thrown printers out the literal window.

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

#308
post #84

My meta side project for building other side projects: https://bodge.app/ I've always had a bunch of small side projects that I want to do that aren't worth the overhead required to actually put them together & keep them maintained. So, I built a small Lua-based FaaS platform to make each individual project less work whenever inspiration strikes. So far I've built: * A current-time API for some hacked-together IoT de…

Thanks for sharing! I signed up and tried it for something simple (storing a message via POST and displaying it in HTML via GET) and it was delightfully easy & approachable.

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

#309

I've been experimenting with using LLMs for a content recommender system. Specifically I've built a news reader app that fetches news articles from multiple RSS feeds, uses an LLM to first deduplicate and then score them. The user can then rate the articles and those ratings are used as few-shot examples in the LLM scoring prompt. Any resulting low score articles (uninteresting to the user) are hidden by default and…

Nice project. One thing I’ve always disliked about RSS (and this could actually fix it) is duplicates. When a new LLM model drops for example there are like ~5 blogs about it in my RSS feed saying basically the same thing, and I really only need to read one. Maybe you could collapse similar articles by topic? Also, would be nice to let users provide a list of feed URLs as a variable instead of hardcoding them.

Looking at the console messages with the LLM reasoning, it does seem to work quite nicely for deduplication. Your example is probably even a lot easier than news articles, where you can have many articles from different viewpoints about the same event.

I don't actually plan to run this as a service so there's some things hard-coded and the setup is a bit difficult as you need an API key and a proxy. Currently it's just experimentation, although if it works well, I'll probably use it personally.

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