fix nix functional test & add mole to brew, del osgrep bd

modules/darwin/homebrew.nix

@@ -16,7 +16,7 @@ in {
     };
     brews = mkOption {
       type = types.listOf types.str;
-      default = [ "curl" "yt-dlp" "infisical" ];
+      default = [ "curl" "yt-dlp" "infisical" "mole" ];
       description = "Homebrew formulae to install.";
     };
     casks = mkOption {

modules/darwin/system.nix

@@ -2,7 +2,7 @@
   imports = [ ./homebrew.nix ./devtools.nix ];
 
   nix = {
-    package = pkgs.nix;
+    package = pkgs.nixVersions.nix_2_28;
     extraOptions = ''
       keep-derivations = true
       keep-outputs = true

modules/home/programs/neovim.nix

@@ -21,6 +21,7 @@
       nil # Nix LSP
       pyright
       nodePackages.typescript-language-server
+      mdx-language-server
       rust-analyzer
       gopls
       clang-tools # provides clangd

modules/home/programs/nvim/lua/plugins/formatting.lua

@@ -26,6 +26,7 @@ return {
         jsonc = { "prettierd", "prettier", stop_after_first = true },
         yaml = { "prettierd", "prettier", stop_after_first = true },
         markdown = { "prettierd", "prettier", stop_after_first = true },
+        mdx = { "prettierd", "prettier", stop_after_first = true },
         html = { "prettierd", "prettier", stop_after_first = true },
         css = { "prettierd", "prettier", stop_after_first = true },
         scss = { "prettierd", "prettier", stop_after_first = true },

modules/home/programs/nvim/lua/plugins/lsp.lua

@@ -101,6 +101,11 @@ return {
       lspconfig.clangd.setup({
         capabilities = capabilities,
       })
+
+      -- MDX
+      lspconfig.mdx_analyzer.setup({
+        capabilities = capabilities,
+      })
     end,
   },
 }

modules/home/programs/nvim/lua/plugins/treesitter.lua

@@ -27,6 +27,7 @@ return {
         "luap",
         "markdown",
         "markdown_inline",
+        "mdx",
         "nix",
         "norg",
         "printf",