move package overrides to overlay

home/home.nix

@@ -5,6 +5,7 @@ with pkgs;
 let
   unstable = import <nixos-unstable> {};
   mybrowser = firefox;
+  lorri = import (fetchTarball { url = "https://github.com/target/lorri/archive/rolling-release.tar.gz"; }) { };
 
   desktopApps = [
     mybrowser
@@ -119,6 +120,7 @@ let
 
   nixHelpers = [
     nox
+    lorri
     ];
 
   kdeTools = with kdeApplications; [
@@ -172,6 +174,7 @@ let
     mtr
     wireshark
     ripgrep
+    ghc
     ];
 
 
@@ -233,7 +236,7 @@ let
   ];
 
   games = [
-    superTuxKart
+    unstable.superTuxKart
     hedgewars
     steam-run-native
   ];