use alacritty as default shell

config/programs/sway.nix

@@ -1,4 +1,4 @@
-{ ... }: {
+{ pkgs, lib, ... }: {
   wayland.windowManager.sway = {
     enable = true;
     config = {
@@ -24,5 +24,10 @@
         };
       };
     };
+    keybindings = let
+      modifier = config.wayland.windowManager.sway.config.modifier;
+    in lib.mkOptionDefault {
+      "${modifier}+Return" = "exec ${pkgs.alacritty}/bin/alacritty";
+    };
   };
 }

config/services/sway.nix

@@ -20,7 +20,6 @@
       wl-clipboard
       wf-recorder
       (python38.withPackages(ps: with ps; [ i3pystatus keyring ]))
-      alacritty
     ];
     extraSessionCommands = ''
       export SDL_VIDEODRIVER=wayland
@@ -39,4 +38,4 @@
     layout = "de";
     xkbVariant = "neo";
   };
-}
+}