Merge pull request #221987 from Pheoxy/linux_xanmod

let

  # These names are how they are designated in https://xanmod.org.

  ltsVariant = {

    version = "6.1.16";

    hash = "sha256-w44mynSAcxx9jpTfj/3LiB2eZKzOBzH2rBKzvXqKQJU=";

    version = "6.1.20";

    hash = "sha256-ni3AsoiDh/MZBhB0dQKFwcPnKSFvw8nhaX/09QCSQd8=";

    variant = "lts";

  };

  mainVariant = {

    version = "6.2.3";

    hash = "sha256-C3Vwgk3UyD638CYeO2z+GBjmCTMVC2fwU7HyX8bxgxg=";

    version = "6.2.7";

    hash = "sha256-nxyEz+xXcr8tK8q+LWqNE3kYdWq4CXSy2vJfnlqKKRk=";

    variant = "main";

  };