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

I've been working on a sillier project lately. Green teeth!

Lumina has made a probiotic strain that is able to, theoretically, prevent cavities. I don't care that much about, but I do think it is a neat strain that can likely colonize your mouth. I'm genetically engineering it to express sfGFP, which would theoretically make my teeth fluorescent green under black light. Would be fun at raves! Also, if I make out with anyone, you could theoretically see changes in microbiome composition just from green-ness. I do wonder how much microbiomes are shared while kissing: this would be an example of a way to directly measure that, instead of just measuring on proxy like much microbiome research

I’m working on https://regularly.co/ - A website made for inquisitive minds to get their daily puzzle fix. Still very much a WIP (mainly working on tuning the difficulty of puzzles to make it enjoyable for most). That being said I really do enjoy the unique combination of puzzles when I do them each day. I’m looking for feedback so if you do take a look please do let me know your thoughts!

I've been building SageNet, a voice-first AI coach that turns your goals into structured, adaptive learning plans.

After a 2-minute voice conversation, Sage generates a personalized 6-module roadmap with build-first projects. It checks in by voice, analyzes your reflections, and regenerates your plan if needed. You can invite friends to your Support Squad for accountability.

The biggest insight so far is people don’t want “infinite content.” They want structure and someone who remembers them.

would love feedback!

http://sagenet.club

Still working on my digital nomad event and workation aggregator.

But now with travel and visa guides to help remote workers become productive in Japan and South Korea ASAP and give them visa guidance if they want to stay a bit longer.

https://reorient.guide/

My latest is Marvelogs (https://www.marvelogs.com) - always wanted to build a price tracker (or tracking any values on a regular basis) - it's nearly there.