profile/sway: migrate autostart

profiles/sway/autostart.nix

@@ -0,0 +1,19 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.profiles.sway-autostart;
+in
+{
+  options.my.profiles.sway-autostart = with lib; {
+    enable = mkEnableOption "sway-autostart profile";
+  };
+
+  config = lib.mkIf cfg.enable {
+
+    # start sway if login happens
+    environment.interactiveShellInit = ''
+      if test `tty` = /dev/tty1; then
+        exec sway
+      fi
+    '';
+  };
+}