agenix/doc/overriding-age-binary.md

Overriding age binary

The agenix CLI uses rage by default as its age implemenation, you can use the reference implementation age with Flakes like this:

{pkgs,agenix,...}:{
  environment.systemPackages = [
    (agenix.packages.x86_64-linux.default.override { ageBin = "${pkgs.age}/bin/age"; })
  ];
}