Gen 423: Converted shell scripts into nix files

glasshouse-laptop/home/scripts/extract.nix

@@ -0,0 +1,12 @@
+{ pkgs }:
+
+{
+	extract = pkgs.writeShellScriptBin "extract" (''
+#!/usr/bin/env bash
+
+for i in "$@" ; do
+    tar -xvzf $i
+    break
+done
+	'');
+}