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Ask HN: What Are You Working On? (December 2025)

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Re: Ask HN: What Are You Working On? (December 2025)

#672

Post by Tsarp »

Building Arivu: CLI/library that normalizes fetch/search across a bunch of sources (arXiv, PubMed, HN, GitHub, Reddit, YouTube transcripts, RSS, web pages…).

I use it as a context fetcher i.e grab an abstract/transcript/thread as clean text/JSON, pipe it into summaries or scripts.

Also runs as an MCP server (experimental), so tools like Claude Desktop or CLI assistants can call the connectors directly.

  arivu fetch hn:38500000
  arivu fetch PMID:12345678
  arivu fetch https://arxiv.org/abs/2301.07041
https://github.com/srv1n/arivu

Re: Ask HN: What Are You Working On? (December 2025)

#673

Post by ChaosOp »

I'm building a web-based local multiplayer party game platform. It's like a lovechild of Jackbox Games and Mario Party: https://gamingcouch.com. We just won silver at the Big Indie Pitch competition as well!

- Currently in free Early Access with 18 competitive mini-games.

- Players use their mobile phones as controllers (you can use game pads as well!)

- Everything is completely web-based, no downloads or installs are necessary to play

- All games support up to 8 players at a time and are action based, with quick ~one minute rounds to keep a good pace. This means there are no language based trivia or asynchronous games!

- In the future we plan to open up the platform for 3rd party developers (and Gamejams!) as well. We take care of the network connectivity, controllers etc.. 3rd party devs can focus on developing cool multiplayer mini-games without spending an eternity with networking code and building the infrastructure.

Interested to hear if this resonates with Hacker News readers!

Re: Ask HN: What Are You Working On? (December 2025)

#674

Post by Ono-Sendai »

ChaosOp wrote: post #673

I'm building a web-based local multiplayer party game platform. It's like a lovechild of Jackbox Games and Mario Party: https://gamingcouch.com . We just won silver at the Big Indie Pitch competition as well! - Currently in free Early Access with 18 competitive mini-games. - Players use their mobile phones as controllers (you can use game pads as well!) - Everything is completely web-based, no downloads or installs a…

Neat idea. What is the controller latency like when using a mobile phone?

Re: Ask HN: What Are You Working On? (December 2025)

#676

Post by drakonka »

At work I'm working on autonomous agents for web application testing, and in my spare time I've been taking some part-time evening courses at the local university for the first time.

Last term I did a course on nuclear weapons and disarmament (and learned to write my first ever academic report!)[0], and this term I'm just about to give a final presentation for an introductory life sciences course (actually just posted a runthrough recording [1]). Next term I'm hoping to get into a course about cosmology!

[0] https://liza.io/categories/2fk064/

[1] https://liza.io/the-body-electric-manipulating-large-scale-a...

Re: Ask HN: What Are You Working On? (December 2025)

#677

Post by itsdanieldk »

https://github.com/fs-fio/fio

A purely functional and asynchronous effect system for F# which started as my thesis in university. It's inspired by ZIO and Cats Effect for Scala and has its own fiber system for scheduling functional effects.

I don't have much time to work on it now a days, but I try to keep up it as much as I can. I also don't have ambitions about getting a lot of users (if any), but I really enjoy working on it :)

Re: Ask HN: What Are You Working On? (December 2025)

#678

Post by pk3 »

https://charityrecord.com

I'm working on a charitable donation tracker for taxpayers. My wife and I used Intuit's ItsDeductible for years until it shut down in October. With a little encouragement, I built Charity Record.

The stack is Django 5.2 (I know, I know, I'm looking at 6 now), Postgres, and HTMX + Alpine.js for interactivity. I'm using Polar for subscriptions. It's running on the $12/mo DigitalOcean droplet.

Trickiest parts so far: TXF export (we can trace TXF back to the 1990s...) and PDF generation. At one point when working on PDFs, WeasyPrint was deadlocking a single-worker setup because it fetched the logo via HTTP. (Base64-embedding the logo got me past that, ha.)

Happy to answer questions about the app or running Django lean - I've got a few longer running Django projects.

Re: Ask HN: What Are You Working On? (December 2025)

#680

Post by raphui »

I’ve been working on a custom RTOS for Cortex-M for the past 10 years: https://github.com/raphui/rnk It started as a way to learn RTOS internals, and over time it has grown into something with lots of nice features. I’m even using it in a dirtbike anti-theft tracker I am building. Also, 2 months ago, I did a weekend challenge to build an embedded software parameter DSL and compiler. Its goal is to let firmware developers define configuration values, thresholds, constants, and other application-level parameters in a structured, human-readable format, and compile them into binary data that the firmware can directly use. https://github.com/raphui/epc

Happy to get any feedback :)

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