Ask HN: What are you building that's not AI related?

I've been building the games I've always wanted to play. It used to take months to make something like Medieval Building Simulator.

Now you tell some idea of what you want and AI gives you a better thing than what you originally imagined. Then you go into a rabbit hole... simulate productivity, sales, customer, cash flow, materials for the building, make it curvy, make it pop up in 3D, populate it with NPCs, give your NPCs wages and background, write a dialogue with the ghosts of Christmas. It ends up being a game in itself.

It's good fun. It costs me $20 and I can do it and deploy it from my phone.

I'm building the CAD app I have always wanted. Free, Parametric, STEP export for 3d printing. The input is just a javascript editor. It uses OpenCascade under the hood. Lots of fun.

reverse engineered Elektron Octatarack binary data files and now writing libraries to interact with/modify them.

https://gitlab.com/ot-tools/ot-tools

i’m currently avoiding committing/releasing a bunch of changes i did last week because people are actually using the library already (the curse of writing something useful lol)

JDBC does not allow pipelining (a Postgres only feature).

It can reduce the number of db round-trips a lot, especially when using Supabase+RLS (or other systems that require frequent setting of configuration values that are basically fire-and-forget).

Meet Bpdbi, a library with first-class pipelining, which provides a Postgres db driver (that's binary only, as the legacy text-based protocol is no longer needed, it just takes up space) and exposes an API that's more close to Jdbi's that to JDBC's (developer friendly).

https://github.com/bpdbi

It has an extensive benchmark that shows it's on par or faster compared to other db connectivity stacks.

Also working on a Korean guide, so far it introduces Hangul (한글), the Korean alphabet: https://tolearnkorean.com/

Also making an app / web app for memorizing Korean words, takes inspiration from Anki and Duolingo. Words go through 4 stages: 1) matching up pairs 2) Multiple choice answer 3) Writing word through blocks 4) Free-form writing.

It's testable here: https://game.tolearnkorean.com/

Feedback is very welcome.