fix(home): Disable screenlocking on generic Linux

It's broken - won't accept correct passwords

modules/home/services/screen-locker/default.nix

@@ -6,23 +6,26 @@
   ...
 }:
 let
-  inherit (lib) mkEnableOption mkIf;
+  inherit (lib) mkEnableOption mkIf getExe;
 
   cfg = config.marleyos.services.screen-locker;
   hasXorg = config.xsession.enable;
-  hasI3 = config.xsession.windowManager.i3.enable;
 in
 {
   options.marleyos.services.screen-locker.enable = mkEnableOption "screen-locker";
 
   config = mkIf (cfg.enable && hasXorg) {
+    home.packages = with pkgs; [
+      betterlockscreen
+    ];
+
     services.screen-locker = {
       enable = true;
       inactiveInterval = 20;
 
       # exec xss-lock {xss-lock.extraOptions} -- {lockCmd}
       xss-lock.extraOptions = [ "--transfer-sleep-lock" ];
-      lockCmd = if hasI3 then "${pkgs.i3lock}/bin/i3lock --nofork" else "";
+      lockCmd = "${getExe pkgs.betterlockscreen} -l";
     };
   };
 }

modules/home/xorg/i3/default.nix

@@ -14,9 +14,10 @@ let
     listToAttrs
     getExe
     ;
-  inherit (lib.marleyos) enabled;
+  inherit (lib.marleyos) enabled disabled;
 
   cfg = config.marleyos.xorg.i3;
+  isGenericLinux = config.targets.genericLinux.enable;
 in
 {
   options.marleyos.xorg.i3.enable = mkEnableOption "i3";
@@ -28,7 +29,8 @@ in
         dunst = enabled;
         picom = enabled;
         polybar = enabled;
-        screen-locker = enabled;
+        # broken on non-nixOS
+        screen-locker = if isGenericLinux then enabled else disabled;
       };
     };