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Ask HN: What are you working on? (May 2026)
251–260 of 1001 posts
Re: Ask HN: What are you working on? (May 2026)
#252I’m building OneBusAway Cloud, which you can think of as being Heroku for public transit . https://onebusawaycloud.com/ It’s a project of the non profit Open Transit Software Foundation that we’re using to fund our other initiatives, like bringing realtime transit information to billions of people around the world. All of this depends on a bunch of really cool open source projects we’re building, like Maglev, a Golan…
I built something in this space.
Do i understand correctly that the product is a white label app for public transport providers that riders can download to get arrival data?
Do you think people will download an app for each bus/train? Isn't it better to integrate with google maps or equivalent?
Re: Ask HN: What are you working on? (May 2026)
#253I've been working on a newish variant of Sudoku called Binku. It combines the traditional Sudoku rules and adds the rules from a game called Binario/Takuzu (with 1-4 as one color and 5-8 as the other color).
A sample puzzle can be found here: https://sudokupad.app/23x300ggzn
It's been well received by the (very kind!) Sudoku/puzzle communities, so I'm working on throwing a nice interface on it that fits the rules a bit better. I've found about five other examples of others doing a variation of this ruleset before in one way or another, and it's been fun trying to see how hard/deep I can get this puzzle to go.
Re: Ask HN: What are you working on? (May 2026)
#254Writing my own programming language eyg.run that for a long time had no syntax. I worked on a structural editor for a long time and this weekend I finally documented the sneaky text syntax that did exist for testing.
So the structural editor I'm not sure about the future. The language is still fun to write and use tho.
Re: Ask HN: What are you working on? (May 2026)
#255I'm working on an AI-native email client that organizes, prioritizes, and drafts emails for you.
The vision is for everyone to have an executive assistant that manages their email. It's built for people who spend hours in their inbox every week.
It has automatic prioritization, split inboxes, snippets, bundles, automatic follow-up reminders, and an AI agent that can do stuff for you -- without deleting your emails.
If you've read this far, I'd encourage you to give it a try and let me know what you think!
Re: Ask HN: What are you working on? (May 2026)
#256Adding support for the threads/atomics proposal to my Wasm to Go transpiler:
https://github.com/ncruces/wasm2go
Since I started it a couple of months ago, it's been used by me to transpile SQLite to Go, and by some other folks to transpile other C, C++, Zig and even Perl libraries to Go.
Re: Ask HN: What are you working on? (May 2026)
#257I'm building DB Pro, a modern, beautiful, and now fully self-hosted database client for desktop and web.
Just launched Studio, which is the self-hosted version of DB Pro.
I also keep a devlog. #9 was just published to YouTube.
Self-Host Your Own Database Client | DB Pro Devlog #9 https://youtu.be/MJvSrJGtk70
Re: Ask HN: What are you working on? (May 2026)
#258I'm building https://clipper.dev Docker is...quite slow with large images. I've built a registry+pull client+buildkit builder to make it better. It splits apart layers, allowing for files to be shared between related images. In a robotics context, it can make pulls 10x faster. And in a cloud context, the format allows for pulling an image in 15 or 20 seconds instead of 60, without having to do a FUSE w/lazy pulling.…
Copy fail and dirty frag killed containers, pivot out of shared kernels now
Re: Ask HN: What are you working on? (May 2026)
#259I am writing synthetic aperture sonar/radar simulator and image formation code from scratch.
https://www.linkedin.com/search/results/all/?keywords=%23ape...
Too many codes or old or gate kept behind proprietary walls. Many are old and don't use the newest acceleration techniquea to make the simulation fast. Additionally, none of them scale using aws. I want SAS/SAR image to be easy to generate for anyone.
Re: Ask HN: What are you working on? (May 2026)
#260https://brettkoonce.github.io/lean4-mlir/blueprint/
https://github.com/brettkoonce/lean4-mlir
I (w/ Claude) have built a framework for writing neural networks in Lean 4 that compiles to StableHLO MLIR and runs on GPU via IREE.