add openmodelica

configuration.nix

@@ -30,6 +30,9 @@ in
   ];
 
   nixpkgs.config.allowUnfree = true;
+  nixpkgs.config.permittedInsecurePackages = [
+    "qtwebkit-5.212.0-alpha4"
+  ];
 
   services.nfs.server = {
     enable = true;
@@ -61,7 +64,7 @@ in
 
   services.resolved = {
     enable = true;
-    dnssec = "allow-downgrade";
+    dnssec = "false";
   };
   networking.nameservers = [
     "1.1.1.1"
@@ -207,6 +210,7 @@ in
   # List packages installed in system profile.
   # You can use https://search.nixos.org/ to find more packages (and options).
   environment.systemPackages = with pkgs; [
+    openmodelica
     vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     pkg-config
     wget