diff --git a/neovim/languages/css.nix b/neovim/languages/css.nix
index 09996953..8682e35e 100644
--- a/neovim/languages/css.nix
+++ b/neovim/languages/css.nix
@@ -1,13 +1,56 @@
 { lib, pkgs, ... }:
+let
+  by_ft =
+    tool: extraFts:
+    builtins.listToAttrs (
+      map (x: lib.nameValuePair x [ tool ]) [
+        # keep-sorted start
+        "css"
+        "javascriptreact"
+        "javascript"
+        "svelte"
+        "typescript"
+        "typescriptreact"
+        "vue"
+        # keep-sorted end
+      ]
+      ++ extraFts
+    );
+in
 {
   config.vim = {
+    diagnostics.nvim-lint = {
+      linters_by_ft = by_ft "oxlint" [ "astro" ];
+      linters.oxlint = {
+        stdin = false;
+        cmd = lib.meta.getExe pkgs.oxlint;
+        args = [
+          "--format"
+          "github"
+        ];
+      };
+    };
+    formatter.conform-nvim.setupOpts = {
+      formatters_by_ft = by_ft "oxfmt" [
+        # keep-sorted start
+        "graphql"
+        "html"
+        "json"
+        "less"
+        "scss"
+        "yaml"
+        # keep-sorted end
+      ];
+      formatters.oxfmt = {
+        command = lib.meta.getExe pkgs.oxfmt;
+      };
+    };
+    languages.css = {
+      enable = true;
+    };
     lsp.servers.vscode-css-language-server.cmd = lib.mkForce [
       (lib.meta.getExe pkgs.vscode-css-languageserver)
       "--stdio"
     ];
-    languages.css = {
-      enable = true;
-      format.type = [ "biome" ];
-    };
   };
 }