Johanna Larsson
Recent Posts
Thoughts on software engineering and technology
Migrating your Bluesky account the hard way
I used the goat command line tool to migrate my main Bluesky account to a new server and survived to tell the tale.
Cluster singleton pattern
You can register a process name globally in Elixir and OTP will ensure it's unique, but there are some surprising edge cases. This shows a pattern for safely defining cluster singletons.
cove.town, atproto self-hosted self-hosting
cove.town consists of a PDS, a knot, a spindle, and a hold, and is fully built on itself. The source code is hosted on the knot, updates trigger workflows running on the spindle that build container images hosted on the hold, and the accounts that own the services live on the PDS.
Highlighted Projects
Featured open source contributions and tools
Larm
Uptime monitoring with full request traces, multi-location verification, and status pages. Hosted in Europe..
HRW
A library for rendezvous hashing, also known as highest random weight, in Elixir.
Latch
Elixir atproto OAuth library and client