setup unison lsp

home.nix

@@ -483,12 +483,31 @@ in {
       };
     };
     languages = {
+      language-server.ucm = {
+        command = "nc";
+        args = ["localhost" "5757"];
+      };
       language = [
         {
           name = "nix";
           auto-format = true;
           formatter = {command = "alejandra";};
         }
+        {
+          name = "unison";
+          scope = "source.unison";
+          injection-regex = "unison";
+          file-types = ["u"];
+          shebangs = [];
+          roots = [];
+          auto-format = false;
+          comment-token = "--";
+          indent = {
+            tab-width = 4;
+            unit = "    ";
+          };
+          language-servers = ["ucm"];
+        }
       ];
     };
   };