add agenix

modules/system/agenix/agenix.nix

@@ -0,0 +1,17 @@
+{ ... }: {
+  flake.nixosModules =
+    { config, ... }:
+    let
+      main = "age17hvac3hn79mwttel9snw87a20x4vguh7y7ys43xmvlhrl3mqs3wswuzlt6";
+    in
+    {
+      "easyroam.age".publicKeys = [ main ];
+      age = {
+        enable = true;
+        identityPaths = [ "/var/lib/misc/key.age" ];
+        secrets = {
+          easyroam.file = ./easyroam.age;
+        };
+      };
+    };
+}