Projects

A plugin that leaves WordPress to handle the editing while a fast Next.js front end serves the site. Editors keep the admin panel they know, and changes reach the site within seconds. Pages respond about 35 times faster than on classic WordPress.

Faster than classic WordPress

~35×

Repeated content query

230 → 7 ms

WordPressPHPNext.jsGraphQL+2

An Android app for cheap ELK-BLEDOM and MELK LED strips that runs on the phone and on the Android Auto screen. The light pulses to music, and voice commands work offline. With the led-auto gateway it also shows the state of the doors and locks.

Automated tests

359

From beat to colour sent

6 ms

KotlinJetpack ComposeAndroid AutoBluetooth LE+3

Extended Markdown for safely formatting comments and descriptions written by users. The TypeScript library has no third-party packages and lets through only what is explicitly allowed. It also has a NestJS integration and a visual editor.

Kinds of element

24

Third-party packages in the library

0

TypeScriptMarkdownSecurityXSS+2

My concept for a launcher, the home screen of an Android head unit, for my Golf IV: the visual design of 22 screens, from navigation and music to car readings and parking sensors, plus an app skeleton in Jetpack Compose.

Screens designed

22

Smallest button (about 1.2 cm)

76 dp

UI/UXKotlinJetpack ComposeAndroid+1

A gateway on a Raspberry Pi Zero 2 W in my Golf IV: it switches on the entry light when a door opens and controls the LED strip, and it talks to the phone over an encrypted channel. It works in the car with the Android Auto panel. I checked its logic automatically in every possible state.

Rules checked in every state

18

Automated tests

154

C++Raspberry PiBluetooth LECryptography+2

A board design (revision 0.1, not yet ordered) to replace the Pi Zero and its wired-up modules in my Golf IV. Everything fits on one board with a Raspberry Pi Pico 2 W, and the power supply is protected against voltage spikes in the car. The schematic and PCB are generated by scripts.

Board size

140 × 100 mm

Converter maximum input voltage

60 V

KiCadPCBRaspberry Pi PicoPython+2

A 3D-printable enclosure for four boards: a Pi Zero 2 W, a backup power supply (UPS), a terminal block and a 4G modem. Every dimension is a parameter in a script. The design is ready to print but has not been printed yet.

Outer dimensions

74 × 92 × 46 mm

Boards inside

4

CadQueryBlender3D printingRaspberry Pi+1