diff --git a/matrix-synapse@1.148.0/flake.lock b/matrix-synapse@1.148.0/flake.lock
new file mode 100644
index 0000000..8f8ed26
--- /dev/null
+++ b/matrix-synapse@1.148.0/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1772030528,
+        "narHash": "sha256-eH3tHXID9wxjCQldO7pJCaNQRQWYU9BIkunZ9t9ItJo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7595f1b925e41fa88e850d0ed09849a37d0363d3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7595f1b925e41fa88e850d0ed09849a37d0363d3",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/matrix-synapse@1.148.0/flake.nix b/matrix-synapse@1.148.0/flake.nix
new file mode 100644
index 0000000..a6e8418
--- /dev/null
+++ b/matrix-synapse@1.148.0/flake.nix
@@ -0,0 +1,30 @@
+{
+  description = "matrix-synapse 1.148.0";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/7595f1b925e41fa88e850d0ed09849a37d0363d3";
+
+  outputs =
+    { nixpkgs, ... }:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+    in
+    {
+      packages = forAllSystems (system: {
+        default = nixpkgs.legacyPackages.${system}.matrix-synapse;
+        matrix-synapse = nixpkgs.legacyPackages.${system}.matrix-synapse;
+        matrix-synapse-unwrapped = nixpkgs.legacyPackages.${system}.matrix-synapse-unwrapped;
+      });
+
+      overlays.default = _final: prev:
+        let
+          pinned = nixpkgs.legacyPackages.${prev.stdenv.hostPlatform.system};
+        in
+        {
+          matrix-synapse = pinned.matrix-synapse;
+          matrix-synapse-unwrapped = pinned.matrix-synapse-unwrapped;
+        };
+    };
+}