Oh a gnu social client written in a memory safe and sane language: pleroma. Needs elixir, and based on phoenix something server.
Ok, let's have a look.
From the docs:" At this point, we should have Elixir, Erlang, Hex, and the Phoenix archive installed. We should also have PostgreSQL and node.js installed to build a default application."
AAAARGH. That's why we cannot have nice things...