Add capability to choose home-manager branch

modules/build.nix

@@ -44,4 +44,6 @@ in
       devVM = recursiveUpdate config.my.asDevVM.system.build.vm { meta.mainProgram = "run-${config.system.name}-vm"; };
     };
   };
+
+  meta.buildDocsInSandbox = false;
 }

modules/common.nix

@@ -1,14 +1,19 @@
-{ lib, pkgs, inputs, homeModules, config, options, ... }:
+{ lib, pkgs, inputs, options, config, ... }:
 let
   inherit (builtins) attrValues;
   inherit (lib) mkIf mkDefault mkAliasDefinitions;
-  inherit (lib.my) mkOpt';
+  inherit (lib.my) mkOpt' dummyOption;
 in
 {
-  options.my = with lib.types; {
-    # Pretty hacky but too lazy to figure out if there's a better way to alias the options
-    user = mkOpt' (attrsOf anything) { } "User definition (as `users.users.*`).";
-    homeConfig = mkOpt' anything {} "Home configuration (as `home-manager.users.*`)";
+  options = with lib.types; {
+    my = {
+      # Pretty hacky but too lazy to figure out if there's a better way to alias the options
+      user = mkOpt' (attrsOf anything) { } "User definition (as `users.users.*`).";
+      homeConfig = mkOpt' anything { } "Home configuration (as `home-manager.users.*`)";
+    };
+
+    # Only present in >=22.05, so forward declare
+    documentation.nixos.options.warningsAreErrors = dummyOption;
   };
 
   config =
@@ -28,11 +33,8 @@ in
       };
 
       home-manager = {
-        useGlobalPkgs = mkDefault true;
+        # Installs packages in the system config instead of in the local profile on activation
         useUserPackages = mkDefault true;
-        sharedModules = homeModules ++ [{
-          _module.args = { inherit inputs; isStandalone = false; };
-        }];
       };
 
       users = {
@@ -67,6 +69,13 @@ in
         };
       };
 
+      documentation = {
+        nixos = {
+          enable = mkDefault true;
+          options.warningsAreErrors = mkDefault false;
+        };
+      };
+
       time.timeZone = mkDefault "Europe/Dublin";
 
       boot = {
@@ -106,4 +115,6 @@ in
         configurationRevision = with inputs; mkIf (self ? rev) self.rev;
       };
     };
+
+  meta.buildDocsInSandbox = false;
 }

modules/dynamic-motd.nix

@@ -22,4 +22,6 @@ in
         '';
     });
   };
+
+  meta.buildDocsInSandbox = false;
 }

modules/firewall.nix

@@ -164,4 +164,6 @@ in
         '';
     })
   ]);
+
+  meta.buildDocsInSandbox = false;
 }

modules/server.nix

@@ -10,4 +10,6 @@ in
   config = mkIf cfg.enable {
     services.getty.autologinUser = config.my.user.name;
   };
+
+  meta.buildDocsInSandbox = false;
 }

modules/tmproot.nix

@@ -210,4 +210,6 @@ in
       })
     ]))
   ]);
+
+  meta.buildDocsInSandbox = false;
 }