Revert 43d36bb3d7

This is a partial revert, reintroducing hexchen to the project.
As it turns out, I am still quite invested in the project and require
frequent access to the nix-based infrastructure.

common/hexchen.nix

@@ -0,0 +1,9 @@
+{config, lib, pkgs, ...}:
+
+let
+  sources = import ../nix/sources.nix;
+in {
+  imports = [
+    (sources.nix-hexchen + "/users/hexchen")
+  ];
+}

common/users.nix

@@ -1,6 +1,10 @@
 { config, pkgs, lib, ... }:
 
 {
+  imports = [
+    ./hexchen.nix
+  ];
+
   home-manager.useGlobalPkgs = true;
 
   users.users = {
@@ -8,6 +12,13 @@
       openssh.authorizedKeys.keys = with pkgs.lib; concatLists (mapAttrsToList (name: user: if elem "wheel" user.extraGroups then user.openssh.authorizedKeys.keys else []) config.users.users);
     };
 
+    # all the actual config is imported from hexchen's nixfiles
+    hexchen = {
+      uid = lib.mkForce 1000;
+      isNormalUser = true;
+      extraGroups = [ "wheel" ];
+    };
+
     stuebinm = {
       uid = 1005;
       isNormalUser = true;

hosts/hainich/services/mail.nix

@@ -94,6 +94,7 @@ in {
             "zauberberg@hacc.space"
         ];
         "admin@hacc.space" = [
+            "hexchen@hacc.space"
             "schweby@hacc.space"
             "zauberberg@hacc.space"
         ];