configurations fix, working on display switching

nixos/monitor-hotplug.nix

@@ -0,0 +1,31 @@
+{ config, pkgs, ... }:
+
+{
+  services.udev = {
+    extraRules = ''
+      ACTION=="change", SUBSYSTEM=="drm", ENV{HOTPLUG}=="1", TAG+="systemd", ENV{SYSTEMD_WANTS}="monitor-hotplug.service"
+    '';
+  };
+
+  systemd.services.monitor-hotplug = {
+    description = "Monitor hotplug";
+
+    environment = {
+      DISPLAY = ":0";
+      XAUTHORITY = "/home/nnm/.Xauthority";
+    };
+
+    path = [ pkgs.xorg.xrandr pkgs.bash pkgs.i3 ];
+
+    serviceConfig = {
+      Type = "oneshot";
+    };
+
+    script = ''
+      #"/home/nnm/development/monitor-update-outputs/target/scala-2.11/monitor-update-outputs-out"
+      /run/current-system/sw/bin/echo test112233
+    '';
+
+    wantedBy = [ "default.target" ];
+  };
+}