Install pnpm instead of yarn
diff --git a/flake.lock b/flake.lock
index 4932c73..2bdf002 100644
--- a/flake.lock
+++ b/flake.lock
@@ -107,22 +107,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-unstable": {
-      "locked": {
-        "lastModified": 1686089707,
-        "narHash": "sha256-LTNlJcru2qJ0XhlhG9Acp5KyjB774Pza3tRH0pKIb3o=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "af21c31b2a1ec5d361ed8050edd0303c31306397",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1686059680,
@@ -145,7 +129,6 @@
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs_2",
-        "nixpkgs-unstable": "nixpkgs-unstable",
         "scalpel": "scalpel",
         "sops-nix": "sops-nix"
       }
diff --git a/modules/node.nix b/modules/node.nix
index 0de7e98..68de5ce 100644
--- a/modules/node.nix
+++ b/modules/node.nix
@@ -2,7 +2,7 @@
   environment.systemPackages = with pkgs; [
     nodejs_20
     nodePackages.typescript
-    yarn
+    nodePackages.pnpm
     nodePackages.pm2
   ];
 }