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

Posted by david927 2 days ago

What are you working on? Any new ideas that you're thinking about?

272 points | 1026 commentspage 33

benldrmn 1 day ago|

I'm working on Isola (https://github.com/isola-run/isola), a passion project of mine. It allows you to easily create and control sandboxes for executing untrusted code on any Kubernetes cluster (one helm install). To support some features I wanted (like on demand snapshotting of specific containers' filesystem in a sandbox pod or limiting egress rate from the sandbox I am working on now) I contributed some changes to gVisor. Happy to chat about the design and implementation of such a project if anyone interested!

haritha-j 1 day ago||

Exploring use cases of world models. I know its a rather vague term, I'm primarily interested in generative models that can create new 3D scenes, in formats such as gaussian splats. Just finishing writing up my PhD thesis (3D modelling of industrial assets) at the moment, so hoping to get more into it soon. If anyone has any thoughts about this space, I'd love to chat!

Smaug123 1 day ago||

Main project is a deterministic .NET runtime (https://github.com/Smaug123/WoofWare.PawPrint). Today I upgraded it to net10, which has naturally caused dozens of regressions which Claude is beavering away at.

Side project is my own agent harness, https://github.com/Smaug123/writ , which is being built sandbox-first and with Nix as a first-class citizen. Obviously everyone has to write their own agent harness as a rite of passage.

tomasz-tomczyk 1 day ago||

It's been three months now of building Crit - https://crit.md - local first, open source tool for reviewing markdown and code output from your favourite AI agent.

It's inspired by GitHub PR review workflow, only with quick iterations and local.

It's been great! I found some dedicated users, dogfooding it every day with Claude and starting to get more contributions from the little community. We just got accepted into Homebrew core which was my target.

I'm expanding the team features now as I've got a few users keen to get the sharing service deployed in their private networks!

roadbar 1 day ago||

Besides my regular work i am going a bit into learning programming and took a problem to fix for me =) As a Sysadmin back in the days i always got along with bash and a bit of python... Now in IT Management i want some quick overview and started to build a app (macOS) that just lists the issues assigned to me... Simple API stuff with a bit of Swift around - really like it so far - will Show HN when done & ready for real world comemnts =)

rhoopr 1 day ago||

I continue to be working on kei, my cloud->local photo/video sync engine.

iCloud Photos is fully baked along with implementing their completely undocumented SyncToken. I’m doing some QoL work in the next few weeks, tightening up some early architecture decisions, and then adding more providers (Immich, NextCloud, Google Takeout… else TBD).

Since last time I posted this, two other people contributed and I’m almost at 100 stars! That’s some dopamine.

https://github.com/rhoopr/kei

tedd4u 19 hours ago|

Thanks for sharing. That's too bad about ADP - anything in the future that could open this up?

germinalphrase 1 day ago||

I’m building a small map application that allows me/friends/family to explore data overlays about morel mushrooms phenology and habitat (ground temp/moisture/terrain/aspect/tree species/etc) in our area. There’s some lightweight forecasting and timing models to help guess at near-term fruiting. I had a big push about a mouth ago to tighten things up, and initial experiences in the field this year have been very promising.

I’ll keep chipping away at it this year, and probably expand beyond morels to other seasonal natural phenomena that my people enjoy like smelt/salmon run, wildflower blooms, etc.

jonnycoder 1 day ago|

I had a similar idea. I picked 10 lbs of morels last year, first time picking. It was a recent burn area from 8 months prior. I was just back out to the same area and there are no morels, but lots of small orange cap looking mushrooms. chatGPT pro said first year is the best and then it drops off on the second year. I might try a much higher elevation spot in a week or two, but it really sucks. Last year I was finding morels on southeast facing slopes. I'm sure north slopes produced later on as I saw people coming off the hill when I drove by.

germinalphrase 1 day ago||

North-facing (in the US) tends to produce earlier due to the increased warmth with south facing producing mid to late season. Fruiting has been suppressed by me due to lack of rain. Best of luck!

My maps aren’t in public release, but reach out if you want to give it a look.

tootyskooty 1 day ago||

I'm working on Repple (https://repple.sh)! It's a modern spaced repetition x incremental reading/PDF library app with a few (tasteful!) QOL AI features.

I've been using Anki for 10+ years and love it but always wanted something with a cleaner UX and a reader view. The recent Anki ownership change pushed me to finally make something, and it's seeing some traction :)

Right now I'm focusing on getting the reading and note-taking view to be nice. I used to use Polar Bookshelf (RIP) but that went away, trying to make something better.

The flashcard side also has a REST API btw!

ElSchorschoDE 1 day ago||

I like splitting firewood in my backyard, and I thought there should be a game about it. So I'm making this:

https://store.steampowered.com/app/4521770/Drunk_Woodcutter/

grahammccain 1 day ago|

Chartlibrary.io - an intelligence layer for AI agents rooted in chart pattern search. Return 500 similar stock charts to the one you a looking at. Give those distributions stats to an agent, disect into buckets by variables. I think it’s a new way to interact with stocks for the agentic world.

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