12 Hobbies Studio
A maker studio

Twelve hobbies, one habit:
build it open, run it yourself.

12 Hobbies Studio makes small, open-source, self-hostable projects across hardware, software and everything in between. No lock-in, no subscriptions you cannot leave, no data you do not own.

Meet OpenScribe Browse projects
Flagship project

OpenScribe

An open-source, self-hosted AI voice recorder in the spirit of a Plaud device - but you bring the AI. Record on a small ESP32-S3, sync over BLE or WiFi, transcribe and summarise with any AI you choose: open-standard, local, or a commercial API.

  • Open hardware, open firmware, open API - build it and own it.
  • Connect to OpenAI, Anthropic, Groq, a local model, or your own server.
  • Self-hosted transcription and summaries. No mandatory cloud.
Explore OpenScribe Source
mic -> ESP32-S3 (record to SD) | BLE / WiFi sync v self-hosted server transcribe -> summarise | (any AI provider) v phone app + open API

Projects

One shipped, more in the workshop. Everything here is open source.

hardware + AI

OpenScribe

Self-hosted AI voice recorder. Bring your own AI, open or commercial.
in the workshop

More soon

New hobbies, new builds. This grid grows as projects ship.

idea

Your idea?

Open a discussion on the forge. The studio likes a good excuse to build.

About the studio

12 Hobbies Studio is a home for maker projects that are worth doing properly and worth sharing. The through-line: build in the open, keep the data with the person who made it, and let anyone reproduce the whole thing from the repo alone. Firmware, servers and apps are copyleft; hardware is open-hardware licensed; docs are share-alike.