Hey NixCon people 
,
we are preparing the first ever small scale NixCon CTF this year.
Thanks to @virchau13 and @3ulalia we managed to create some interesting challenges for everybody!
As we currently only have two challenge authors, I thought about reaching out to the community to see if anybody is interested in authoring more challenges 
If so please PM me on Matrix, under @qubasa:gchq.icu!