refactor niri config and put fcitx and satellite into systemd service

home/david/modules/programs/niri/default.nix

@@ -13,6 +13,9 @@ in {
       extraConfig = lib.mkOption {
         type = inputs.niri-flake.lib.kdl.types.kdl-document;
       };
+      DISPLAY = lib.mkOption {
+        type = lib.types.str;
+      };
     };
   };
   config = lib.mkMerge [
@@ -21,9 +24,30 @@ in {
     }
     (
       lib.mkIf cfg.enable {
+        home.sessionVariables = {
+          inherit (cfg) DISPLAY;
+        };
+        david.programs = {
+          xwayland-satellite = {
+            inherit (cfg) DISPLAY;
+            enable = true;
+          };
+          fcitx5-reload = {
+            enable = true;
+          };
+        };
+        systemd.user.services = {
+          "fcitx5-reload".Unit.After = ["xwayland-satellite.service"];
+          "xwayland-satellite".Unit.Before = ["fcitx5-reload.service"];
+        };
         youthlic.programs.niri = {
           # settings = lib.mkMerge [(import ./settings.nix args) cfg.settings];
-          config = (lib.toList (import ./config.nix args)) ++ (lib.toList cfg.extraConfig);
+          config =
+            (lib.toList (import ./config.nix (args
+              // {
+                inherit (cfg) DISPLAY;
+              })))
+            ++ (lib.toList cfg.extraConfig);
         };
         david.programs.wluma.enable = true;
       }