uninstall radicale

modules/nixos/features/nixvim.nix

@@ -33,6 +33,7 @@ in
         relativenumber = true;
         shiftwidth = 2;
         tabstop = 2;
+        colorcolumn = "80";
       };
       plugins = {
         # autoclose brackets
@@ -77,6 +78,10 @@ in
               installCargo = true;
               installRustc = true;
             };
+            hls = {
+              enable = true;
+              installGhc = true;
+            };
           };
         };
         lsp-format.enable = true;