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

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21–30 of 914 posts

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

#21
I've been working on some electronics stuff more recently, and I designed custom PCBs which read the voltage and internal resistance of the 12V NiMH batteries used by robots in FIRST Tech Challenge. It's not always easy to know how charged or healthy the batteries are for a match, or when it's time to get rid of them. They're pretty small and are easy to assemble. Rather that having a screen (which would take precious flash and pins on the ATTiny412), it just uses a WS2812B RGB LED.

I wrote the firmware in Arduino, which was a great learning experience because I typically work with CircuitPython or Go, where I'm less constrained.

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

#28

Working on two topics that I like : browser multiplayer games and experiences, and tools for developers (mostly used in my side projects). First game is https://geocentric.top where users can sculpt a planet collaboratively and place trees or houses (for now very limited). I plan on making it an idle sim where players will be able to interact by dropping some food/events for the creatures on it to evolve through time…

> https://geocentric.top/

This is really fun. Always a fan of any game that shows other people in real time

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

#29
post #14

I 3D printed some new apertures for an infrared spectrometer at work to reduce some issues that cause artifacts in the data to enable higher accuracy measurements, particularly of high index and reflective samples. Seems to be working well now.

Very nice, did you run into any interesting challenges?

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

#30

I've been working on an iOS camera app to take natural-looking photos with reduced post-processing. The goal is take photos that look like what you see. I just updated the RAW pipeline and I'm really happy with how the resulting photos look, plus there's this cool "RAW+ProRAW" capture mode I introduced recently. https://apps.apple.com/us/app/unpro-camera/id6535677796 I initially released it early last year and have b…

It's not available in my region (NL) :(
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