The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

The best free and open-source automated time tracker. Cross-platform, extensible, privacy-focused.

E-Ink Magic Calendar that automatically syncs to Google Calendar and runs off a battery powered Raspberry Pi Zero

Ticket shop application for conferences, festivals, concerts, tech events, shows, exhibitions, workshops, barcamps, etc.

The server portion of a distributed ledger purpose-built for decentralized identity.

Bottle drop and collection management system for chaos events