Install postgres and dendrite
diff --git a/flake.lock b/flake.lock
index a2bb784..bf6af46 100644
--- a/flake.lock
+++ b/flake.lock
@@ -150,9 +150,33 @@
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs_2",
         "nixpkgs-unstable": "nixpkgs-unstable",
+        "scalpel": "scalpel",
         "sops-nix": "sops-nix"
       }
     },
+    "scalpel": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "sops-nix": [
+          "sops-nix"
+        ]
+      },
+      "locked": {
+        "lastModified": 1655566736,
+        "narHash": "sha256-Vyolf8j7QcAHyVTQMqS8EGYZ/P6leJtiVNhYyIxoMRw=",
+        "owner": "polygon",
+        "repo": "scalpel",
+        "rev": "16c2103d613bb1c7adc6dbf2a17c2980ce08567f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "polygon",
+        "repo": "scalpel",
+        "type": "github"
+      }
+    },
     "sops-nix": {
       "inputs": {
         "nixpkgs": [