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Things I build in the open.

Software I wanted at home and could not find. Most of it lives in the allhappy-labs organisation on GitHub. All side projects; my day job is at Squirro.

Three iPhone screens: Home with time awake and today's timeline, History grouped by day, and Ask answering a question about yesterday's sleep

Baby tracker

Coming soon

A native iPhone app for logging a newborn's day one-handed and half asleep: feeds, sleep and diapers in a couple of taps, plain-language answers about the log from Apple's on-device model, and a sync server the family hosts itself.

  • swift
  • go
Three iPhone screens: Smart Inbox across all accounts, Ask Mail answering a question with the messages it used, and Settings

Plainpost

A local-first mail app for macOS and iOS: IMAP and the big providers, local full-text search, rules and a Smart Inbox, with mail and credentials kept on your devices and AI help only if you switch it on.

  • swift
  • macos
  • ios
The editor with a transcript beside the preview, caption cues on the timeline and caption styling on the right

Video Creater

A local-first video editor for macOS and Linux: cut and caption from the transcript, with an agent whose edits you can inspect and undo. Early preview.

  • rust
  • gstreamer
Three phone screens: a Swiss German deck overview, a study card with Again, Hard, Good and Easy, and the match game

Flashly

Local-first flashcards for web and mobile: spaced-repetition study, plus browse, match, write and test modes, and an adaptive learn mode.

  • typescript
  • react
Three iPhone screens: the sync dashboard, the export settings and a historical import in progress

Vital Relay

An iPhone app that sends the Apple Health data you choose to your own Home Assistant, full history included. No account in between.

  • swift
  • healthkit
  • home-assistant
A saved article open as Markdown next to the vault folder holding the note and its attachments

Arthur

A browser extension that saves the article you are reading as clean Markdown, media included, into an Obsidian-style folder.

  • typescript
  • rust
  • browser-extension

Health Bridge archive fork

The Home Assistant side of Vital Relay: a fork of Health Bridge that keeps every original Apple Health sample in a durable archive, apart from Home Assistant's own history.

  • python
  • home-assistant