NixOS system flake for the Netsoc server

Add user Niall #4

Merged niallflynn.tngl.sh
targeting trunk from niallflynn.tngl.sh/nixos:trunk
Merged opened by and assigned to niallflynn.tngl.sh
targeting trunk from niallflynn.tngl.sh/nixos:trunk
Commits 1

Add user Niall