add some library functions

home/x11-progs.nix

@@ -1,16 +1,23 @@
 { lib, config, pkgs, ...}:
 
-{
+let
-  home.packages = with pkgs; [
+  plib = import ../lib { inherit pkgs; };
-    xclip
+in {
-    xcape
+  home.packages = [
-    xscreensaver
+    pkgs.xclip
-    mpv
+    pkgs.xcape
-    sxiv
+    pkgs.xscreensaver
-    xwallpaper
+    pkgs.mpv
-    xbrightness
+    pkgs.sxiv
-    xdotool
+    pkgs.xwallpaper
-
+    pkgs.xbrightness
-    brave
+    pkgs.xdotool
+  ] ++ [
+    (plib.mkPackageWrapper
+      pkgs.brave
+      "export HOME=$HOME/.cache/brave"
+      ""
+      "--args --disable-frame-rate-limit"
+    )
   ];
 }

lib/default.nix

@@ -0,0 +1,28 @@
+{ pkgs ? import <nixpkgs> {} }:
+let
+  getPkgName =
+    pkg:
+    builtins.elemAt (builtins.split "-" pkg.name) 0;
+in {
+  mkPackageWrapper =
+    pkg:
+    environ:
+    prefix:
+    postfix:
+    pkgs.writeScriptBin
+      (getPkgName pkg)
+      ''
+        #! ${pkgs.bash}/bin/bash
+        ${environ}
+        exec ${prefix} ${pkg}/bin/${getPkgName pkg} ${postfix} "$@"
+      '';
+  mkQuarantinedPackage =
+    pkg:
+    pkgs.writeScriptBin
+      (getPkgName pkg)
+      ''
+        #! ${pkgs.bash}/bin/bash
+        export HOME=$HOME/.local/${getPkgName pkg}
+        exec ${pkg}/bin/${getPkgName pkg}
+      '';
+}