refactor(repo): reformat to nixfmt; relicense to 0BSD

hosts/shared/river.nix

@@ -3,9 +3,11 @@
   lib,
   pkgs,
   ...
-}: let
+}:
+let
   cfg = config.alqueva.wms.river;
-in {
+in
+{
   options.alqueva.wms.river = {
     enable = lib.mkEnableOption "River";
   };
@@ -35,8 +37,7 @@ in {
     };
 
     environment.systemPackages = builtins.attrValues {
-      inherit
-        (pkgs)
+      inherit (pkgs)
         wf-recorder
         rofi-wayland
         kitty