flake.nix

@@ -91,9 +91,15 @@
     util = import ./util {inherit inputs;};
     forEachPkgs = util.forEachPkgs;
 
+    mkNixosInstaller = util.mkNixosInstaller;
     mkNixosSystem = util.mkNixosSystem;
     mkDarwinSystem = util.mkDarwinSystem;
     mkHome = util.mkHome;
+    syncthingConfiguration = util.syncthingConfiguration;
+
+    installerSystems = {
+      basic = mkNixosInstaller "basic" [];
+    };
 
     nixosSystems = {
       horizon = mkNixosSystem "horizon";
@@ -164,10 +170,14 @@
       };
     });
 
+    installerConfigurations = installerSystems;
+
     nixosConfigurations = nixosSystems;
 
     darwinConfigurations = darwinSystems;
 
     homeConfigurations = homeConfigurations;
+
+    syncthingConfiguration = syncthingConfiguration;
   };
 }

modules/nixos-modules/sync.nix

@@ -1,7 +1,7 @@
 {
   config,
   lib,
-  syncthingConfiguration,
+  outputs,
   ...
 }: let
   mountDir = "/mnt/sync";
@@ -27,7 +27,7 @@ in {
           configDir = configDir;
           overrideDevices = true;
           overrideFolders = true;
-          configuration = syncthingConfiguration;
+          configuration = outputs.syncthingConfiguration;
           deviceName = config.networking.hostName;
         };
       }

util/default.nix

@@ -52,12 +52,6 @@
       home-manager-config
       ../modules/system-modules
     ];
-
-  syncthingConfiguration = nix-syncthing.lib.syncthingConfiguration {
-    modules = [
-      (import ../configurations/syncthing)
-    ];
-  };
 in {
   forEachPkgs = lambda: forEachSystem (system: lambda system (pkgsFor system));
 
@@ -68,9 +62,19 @@ in {
       (lib.mkUnless condition no)
     ];
 
+  mkNixosInstaller = host: userKeys:
+    nixpkgs.lib.nixosSystem {
+      modules = [
+        {
+          # TODO: authorized keys for all users and hosts
+        }
+        ../configurations/nixos/${host}
+      ];
+    };
+
   mkNixosSystem = host:
     nixpkgs.lib.nixosSystem {
-      specialArgs = {inherit inputs outputs util syncthingConfiguration;};
+      specialArgs = {inherit inputs outputs util;};
       modules =
         system-modules
         ++ [
@@ -115,4 +119,10 @@ in {
           ../configurations/home-manager/${user}
         ];
     };
+
+  syncthingConfiguration = nix-syncthing.lib.syncthingConfiguration {
+    modules = [
+      (import ../configurations/syncthing)
+    ];
+  };
 }