diff --git a/flake.nix b/flake.nix
index f793ddb..df51811 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,5 +1,5 @@
 {
-  description = "NixOS configuration for my homelab";
+  description = "my nixos configurations";
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
diff --git a/home/emmatherock/agents.nix b/home/emmatherock/agents.nix
index dd7139d..fb7639e 100644
--- a/home/emmatherock/agents.nix
+++ b/home/emmatherock/agents.nix
@@ -6,7 +6,6 @@ in
 {
   home.packages = with agents; [
     antigravity-cli
-    codex
     claude-code
   ];
 }
\ No newline at end of file
diff --git a/home/emmatherock/core.nix b/home/emmatherock/core.nix
index 189bfba..d4fd29e 100644
--- a/home/emmatherock/core.nix
+++ b/home/emmatherock/core.nix
@@ -7,5 +7,12 @@
   programs.home-manager.enable = true;
   programs.btop.enable = true;
 
+  # Per-project toolchain resolution (nix-shell / flake devShell), used by
+  # nixvim's LSP servers so they don't need language toolchains installed globally.
+  programs.direnv = {
+    enable = true;
+    nix-direnv.enable = true;
+  };
+
   home.stateVersion = "25.11";
 }