init flake

flake.nix

@@ -0,0 +1,52 @@
+{
+  description = "Matrix server for CCCB";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    agenix = {
+      url = "github:ryantm/agenix";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+      };
+    };
+  };
+  outputs = {self, nixpkgs, agenix}:
+  let
+    system = "x86_64-linux";
+    pkgs = import nixpkgs { inherit system; };
+  in
+  {
+    formatter.${system} = pkgs.nixfmt-tree;
+    devShells.${system}.default = pkgs.mkShell {
+      packages = [
+        (agenix.packages.${system}.default)
+        pkgs.age
+      ];
+    };
+    nixosConfigurtions."matrix" = nixpkgs.lib.nixosSystem {
+      inherit system;
+      modules = [
+        agenix.nixosModules.default
+        { environment.systemPackages = [(agenix.packages.${system}.default)]; }
+        {
+          age.secrets = {
+            pushover_app_token = {
+              file = ./secrets/pushover_app_token.age;
+              mode = "440";
+              owner = "root";
+              group = "root";
+            };
+            pushover_user_key = {
+              file = ./secrets/pushover_user_key.age;
+              mode = "440";
+              owner = "root";
+              group = "root";
+            };
+          };
+        }
+        ./configuration.nix
+        ./services/synapse.nix
+      ];
+    };
+  };
+}
+