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, 3 deletions

diff --git a/pkgs/cmdtree.nix b/pkgs/cmdtree.nix
index 1c991bb..20254b3 100644
--- a/pkgs/cmdtree.nix
+++ b/pkgs/cmdtree.nix
@@ -1,9 +1,10 @@
-{stdenv, fetchgit, xorg }:
+{stdenv, fetchFromGitHub, xorg }:
 
 stdenv.mkDerivation {
   name = "cmdtree";
-  src = fetchgit {
-    url = "git://jb55.com/cmdtree";
+  src = fetchFromGitHub {
+    owner = "jb55";
+    repo = "cmdtree";
     rev = "a7a1f07bfca23397d0d645cb7dbc3b7a63e521cb";
     sha256 = "sha256-QPUJUNiLzva+Mtbhic/yv6u2VIFdXkiZCtSz4eWSxzc=";
   };