added otter launcher

modules/features/otter-launcher/default.nix

@@ -21,12 +21,16 @@
   }: {
     packages = {
       otter-launcher = let
-        config-file = ./config.toml;
         extra-config = ''
-          [overlay]
-          overlay_cmd = """
-          ${pkgs.chafa} -s 20x20 ${./cat.png}
-          """
+               [overlay]
+               overlay_cmd = """
+               ${lib.getExe pkgs.chafa} -s 20x20 ${./cat.png}
+               """
+          # overlay_trimmed_lines = 1
+        '';
+        final-config = pkgs.writeText "config.toml" ''
+          ${builtins.readFile ./config.toml}
+          ${extra-config}
         '';
       in
         inputs.wrappers.lib.wrapPackage ({
@@ -38,10 +42,7 @@
           inherit pkgs;
           package = inputs.otter-launcher.packages.${pkgs.stdenv.hostPlatform.system}.default;
           flags = {
-            "-c" = lib.mkMerge [
-              config-file
-              extra-config
-            ];
+            "-c" = final-config;
           };
         });
     };