Fixed #9

commit_text

@@ -1 +1 @@
-Added jgrpp 0.65.2
+Fixed #9

configuration.nix

@@ -168,31 +168,7 @@
 
   # List packages installed in system profile. To search, run:
   # $ nix search wget
-  environment.systemPackages = with pkgs;
-    let
-      jgrpp = openttd.overrideAttrs (oldAttrs: rec {
-        pname = "openttd-jgrpp";
-        version = "0.65.2";
-
-        src = fetchFromGitHub {
-          owner = "JGRennison";
-          repo = "OpenTTD-patches";
-          rev = "jgrpp-${version}";
-          hash = "sha256-CoWtFhR8U1PjvV4ID7R5cuFAD6jV8Ps6DtLOu6V55TM=";
-        };
-        patches = [ ];
-
-        buildInputs = oldAttrs.buildInputs ++ [ zstd ];
-
-        meta = {
-          homepage = "https://github.com/JGRennison/OpenTTD-patches";
-          changelog =
-            "https://github.com/JGRennison/OpenTTD-patches/blob/jgrpp-${version}/jgrpp-changelog.md";
-          mainProgram = "openttd";
-        };
-
-      });
-    in [
+  environment.systemPackages = with pkgs; [
     #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     #  wget
     kdePackages.krecorder
@@ -255,6 +231,12 @@
     crawlTiles
     prismlauncher
     mindustry
+    (with pkgs;
+      import ./jgrpp-0.65.2/jgrpp-0.65.2.nix {
+        inherit fetchFromGitHub;
+        inherit openttd;
+        inherit zstd;
+      })
 
     retroarch-full
 
@@ -266,8 +248,6 @@
     libreoffice
     pandoc
     texliveFull
-
-      jgrpp
   ];
 
   fonts.packages = with pkgs; [ nerd-fonts.hack ];

jgrpp-0.65.2/jgrpp-0.65.2.nix

@@ -0,0 +1,24 @@
+{ fetchFromGitHub, openttd, zstd, ... }:
+
+openttd.overrideAttrs (oldAttrs: rec {
+  pname = "openttd-jgrpp";
+  version = "0.65.2";
+
+  src = fetchFromGitHub {
+    owner = "JGRennison";
+    repo = "OpenTTD-patches";
+    rev = "jgrpp-${version}";
+    hash = "sha256-CoWtFhR8U1PjvV4ID7R5cuFAD6jV8Ps6DtLOu6V55TM=";
+  };
+  patches = [ ];
+
+  buildInputs = oldAttrs.buildInputs ++ [ zstd ];
+
+  meta = {
+    homepage = "https://github.com/JGRennison/OpenTTD-patches";
+    changelog =
+      "https://github.com/JGRennison/OpenTTD-patches/blob/jgrpp-${version}/jgrpp-changelog.md";
+    mainProgram = "openttd";
+  };
+
+})