Switch to kitty terminal with ef-dream theme, emoji support

- Replace urxvt with kitty as default terminal
- Add ef-dream inspired color scheme to kitty
- Configure emoji font fallback with Noto Color Emoji
- Update xmonad.hs to use kitty for terminal and scratchpads
- Fix cmdtree to fetch from GitHub instead of broken git://jb55.com
- Remove urxvt.nix and alacritty config
- Add AGENTS.md for agentic coding tools

1 files changed, 4 insertions, 0 deletions

diff --git a/overlay.nix b/overlay.nix
index 53a5086..34d2051 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -7,4 +7,8 @@ self: super:
   zebra = super.callPackage ./pkgs/zebra.nix {};
 
   whisper-dictate = super.callPackage ./whisper-dictate {};
+
+  vdirsyncer = super.callPackage ./pkgs/vdirsyncer-patch.nix {
+    inherit (super) vdirsyncer;
+  };
 }