treewide: slim down and reorganize config

home/features/desktop/default.nix

@@ -5,20 +5,19 @@
     ./alacritty.nix
     ./vscode.nix
     ./1password.nix
-    ./obs.nix
     ./irc.nix
     ./emacs.nix
   ];
 
   home.packages = with pkgs; [
+    # my primary note-taking tool
     obsidian
-    kdenlive
-    audacity
+    # a video player
     mpv
+    # a music player
     spotify
-    tidal-hifi
+    # for watching stuff w/ friends
     syncplay
-    chatterino2
   ];
 
   home.sessionVariables = {
@@ -26,6 +25,4 @@
     QT_QPA_PLATFORM = "wayland";
     LIBSEAT_BACKEND = "logind";
   };
-
-  xdg.mimeApps.enable = true;
 }