restructured directories + modularized btrfs mount

bundles/art.nix

@@ -0,0 +1,14 @@
+{ config, pkgs, ... }:
+
+{
+  users.users.jawz.packages = with pkgs; ([
+    gimp # the coolest bestest art program to never exist
+    krita # art to your heart desire!
+    mypaint # not the best art program
+    mypaint-brushes # but it's got some
+    mypaint-brushes1 # nice damn brushes
+    # drawpile # arty party with friends!!
+    pureref # create inspiration/reference boards
+    blender # cgi animation and sculpting
+  ]);
+}