add openmodelica

flake.nix

@@ -17,19 +17,39 @@
   };
 
   outputs =
-    { self, nixpkgs, home-manager, split-monitor-workspaces, ... }@inputs:
+    {
+      self,
+      nixpkgs,
+      home-manager,
+      split-monitor-workspaces,
+      ...
+    }@inputs:
     let
       system = "x86_64-linux";
       pkgs = import nixpkgs {
         inherit system;
-        config = { allowUnfree = true; };
+        config = {
+          allowUnfree = true;
+        };
       };
-    in {
+    in
+    {
       nixosConfigurations.haskell = nixpkgs.lib.nixosSystem {
         inherit system;
         specialArgs = { inherit inputs; };
         modules = [
           ./configuration.nix
+          (
+            { pkgs, ... }:
+            {
+              # Define the overlay inline or in a separate file
+              nixpkgs.overlays = [
+                (final: prev: {
+                  openmodelica = final.callPackage ./nixpkgs/openmodelica.nix { };
+                })
+              ];
+            }
+          )
           home-manager.nixosModules.home-manager
           {
             home-manager.useGlobalPkgs = true;