Rope skipper and, among other things, a member of the Technical Committees - Innovation Committee of the International Jump Rope Union; one of the IT "department"; and "hobby archivist" trying to capture current and historic rope skipping organisations' documents in the IJRU archive. Member of the rope skipping committee in Swedish Gymnastics. And I build scoring systems like RopeScore, and a platform for learning rope skipping skills the Tricktionary, both as open source and open data.
I'm also the treasurer of the Swedish nonprofit Libera Chat who runs the now largest IRC network for FOSS and peer-directed projects.
And I'm an amateur violist who've played for close to 20 years now, sitting on the board of my local symphony orchestra.
When I have time to spare I fiddle with other projects, like my meeting voting platform AGM Vote.