have to keep tic80 on v0.8

pkgs/tic-80.nix

@@ -1,11 +1,11 @@
 # Stolen from: https://gist.github.com/jjwatt/c83c02e6903c8ffaf546fe5eb27e7d25?permalink_comment_id=3305141#gistcomment-3305141
 { pkgs, ... }:
-stdenv.mkDerivation rec {
+pkgs.stdenv.mkDerivation rec {
   name = "tic-80";
-  src = builtins.fetchGit {
-    fetchSubmodules = true;
+  src = pkgs.fetchgit {
+    fetchSubmodules = true; # not supported by builtins.fetchGit :(
     url = "https://github.com/nesbox/TIC-80";
-    rev = "0feb848378fc40d16aaa609ed7a2148d7a064ac4";
+    rev = "0feb848378fc40d16aaa609ed7a2148d7a064ac4"; # v0.8 didn't look at what changed in the newer versions
     sha256 = "12fl9wfc1577rmzcll50r3hq582010bpwd3yi15ji2vadc2q1w9l";
   };
   buildInputs = with pkgs; [
@@ -53,11 +53,11 @@ stdenv.mkDerivation rec {
     cp -v bin/tic80 $out/bin
   '';
 
-  tic80Item = makeDesktopItem {
+  tic80Item = pkgs.makeDesktopItem {
     name = "TIC-80";
     exec = "tic80";
     comment = "Tiny Computer";
-    categories = "Development;Game";
+    categories = [ "Development" "Game" ];
     desktopName = "TIC-80";
   };
 }