Refactor the whole codebase. Most notable changes:

- No more fail2ban. It didn't work properly
  anyways, I'll need to look into this in the future
- No nix-super. I don't need it and the overlay is
  broken so I'm waiting for that to be fixed first.
- Uses nh instead of nixos-rebuild. This is much
  better.

.gitignore

@@ -1,37 +1,34 @@
 *
 
-!derivations/
-
 !docs/
 
 !hosts/
 
-!hosts/enka/
-
 !hosts/cube/
-!hosts/cube/acme/
 !hosts/cube/forgejo/
 !hosts/cube/grafana/
 !hosts/cube/mail/
-!hosts/cube/matrix-synapse/
+!hosts/cube/matrix/
 !hosts/cube/nextcloud/
 
+!hosts/disk/
+
+!hosts/enka/
+
 !modules/
 !modules/hyprland/
 !modules/nushell/
-!modules/openssh/
 
 !lib/
 
+!options/
+
 !.gitignore
 !flake.lock
 
 !*.age
 !*.gif
-!*.hist
 !*.md
 !*.nix
 !*.nu
-!*.opus
 !*.png
-!*.sh