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Posted by david927 1 day ago

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

What are you working on? What have you been curious about lately?
291 points | 917 commentspage 28
chilicuil 19 hours ago|
https://saludpass.com one place for allergies, medications, and documents. Share it with any doctor in seconds—with a QR code or a link, data is saved in gdrive, therefore it requires a gmail account, at this moment only in spanish.
okaleniuk 18 hours ago||
I'm working on a highly specialized isosurface extraction algorithm for 3D-printable surface-based lattices.

https://www.linkedin.com/posts/okaleniuk_isosurface-mesh-stl...

The lattice configuration comes from a conventional triangle mesh, so you can prepare it with any STL editor of your choice, and the lattice shape comes from a precalculated Fourier polynomial in barycentric coordinates.

https://okaleniuk.codeberg.page/blackboard/barycentric_fouri...

gusco 12 hours ago||
https://intestinate.com/gusco/

TUI file manager with Bitwarden/SFTP/S3 support written in go.

Runs pretty much anywhere.

Current feature in the works is built-in audio player.

As someone who still likes to purchase and organize music in files and directories, I couldn't resist the itch to code a worthy competitor to Cubic Player :)

xkam 18 hours ago||
https://multicoder.dev/

One UI for every coding agent - VS Code extension (GUI) to launch and work with any ACP-compatible agent harness. Supports Claude Code, Codex, OpenCode, Qwen and many others - https://agentclientprotocol.com/get-started/registry . Does not require any new subscription or user ID - this is still handled by the harness, so you can use existing Claude Code or Codex subscription. Multicoder just gives you a high-quality GUI to work with any of them without mental switching cost.

fredwu 16 hours ago||
https://feedbun.com - a browser extension that decodes food labels and recipes on any website for healthy eating, with science-backed research summaries and recommendations.

Been working on Feedbun for a little while, Elixir/Phoenix stack, with bespoke LLM fleets for production workflows. Recently just started using React Native (Expo) for the companion mobile app so I can use it when I shop IRL.

Also started working on a 2D strategy game using Godot engine, still super early days. Been fun to experiment with different LLMs capabilities on game development.

vips7L 6 hours ago||
I’m building my own OAuth provider. I know there’s a lot of options out there but I’ve built one at work for the last 5 years and I’d like to “do it right”
lvduan 8 hours ago||
I built this sql formatter <https://sql.leuduan.work> for my own use - it works by parsing the SQL query to AST using native engines where possible (for BigQuery it use GoogleSQL library, for MSSQL it uses Microsoft ScriptDOM, the rest uses Apache Data Fusion Parser) and from the AST it re-generates the SQL query in a consistent formatted style. You can throw in all kind of badly formatted SQL queries and it will work just fine. Hope you find it useful!
Metricon 1 day ago||
Now launched => Verse Draft: https://versedraft.com - An all-in-one writing studio where fiction writers can keep all the details for their universes in one place while crafting stories, novels, movie scripts, TV series, or stage plays.

Also created a fun simple "card game" activity for writers looking for story ideas or stuck with writers block: https://talemancy.com/

(This was somewhat inspired by memories of playing Ultima IV as a teenager)

Currently working on something a little more visually focused in creative design.

primaprashant 1 day ago||
Haven't added a demo to the repo yet (will do soon) but building this TUI [1] in Go to manage my agent skills.

I don't like putting 20-30 agent skills in the .claude/skills/ dir and letting the agent figure it out. I keep all the skills I've created and adapted over time in a separate git repo and then from there I copy them to the project skill dir when i need them for a session and then remove them when I'm done.

This TUI just replaces all the manual work with ls, cp -r, and rm -rf commands with a few keystrokes.

[1] https://github.com/primaprashant/sei

bpedro 16 hours ago|
https://github.com/imminent-technology/http-search-query-lan...

Research on which query language to use when performing search/query operations over HTTP — specifically in the context of the new HTTP QUERY method.

Use this research to figure out, for your own API, whether one of the 68 query languages analyzed here already fits the query content of a QUERY request — or whether none of them do, and you're better off designing a brand new, purpose-built query language instead.

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