user/neovim: try fixing dart?

modules/user/neovim.nix

@@ -1,7 +1,9 @@
 { config, lib, pkgs, ... }:
 let
   luaconf = pkgs.writeText "config.lua"
-    (lib.replaceStrings ["{{OMNISHARP_PATH}}"] ["${pkgs.omnisharp-roslyn}/bin/OmniSharp"]
+    (lib.replaceStrings
+      ["{{OMNISHARP_PATH}}" "{{DART_PATH}}"]
+      ["${pkgs.omnisharp-roslyn}/bin/OmniSharp" "${pkgs.dart}/bin/dart"]
       (builtins.readFile ../../res/config.lua));
 in {
   systemd.user.tmpfiles.rules = [

res/config.lua

@@ -272,4 +272,8 @@ require("lsp_signature").setup {
 require("fzf_lsp").setup()
 
 -- LSP/flutter
-require("flutter-tools").setup()
+require("flutter-tools").setup {
+    lsp = {
+        cmd = { "{{DART_PATH}}", "language-server", "--protocol=lsp" }
+    }
+}