// lab

Lab and open source

Things I build to learn: apps, printable hardware, and (soon) silicon and kernel patches.

L1 · app

Trajekt

Turns bike and public transport trips into expense claims in Moneybird, booked each month with the right VAT.

L2 · app

Connect

A free web app that helps you grow closer to the people you love by asking meaningful questions.

  • Four settings: friends, date, year end and work.
  • 50 conversation starters per session.
  • Works offline by design, because you can’t truly connect while you’re online.

L3 · open-source

GitHub

Open source tools and experiments. Highlights:

  • Flow Launcher ChatGPT plugin (55★): ChatGPT straight from your launcher.
  • notion-auto-ocr (50★): automatic OCR for images in Notion.
  • TPS61220 boost converter: a small power board design.

L4 · hardware

Thingiverse

Practical parts, designed in Tinkercad and printed on an Ender 3 Pro:

  • a wall mount for the Lenovo Tab M8, the most liked design with 59 likes
  • a retrofit for IKEA smart blinds
  • a smart retrofit doorbell

L5 · silicon

Tiny Tapeout

Designing a small digital circuit to be manufactured on a real chip through Tiny Tapeout’s shared shuttle. It’s the next step down the stack, from PCBs to silicon.

L6 · kernel

Linux kernel

Learning the kernel’s development process, with the goal of getting a first patch accepted upstream.