self: super: {
  public-inbox = super.public-inbox.overrideAttrs (oldAttrs: rec {
    version = "1.5.0";
    src = super.fetchurl {
      url = "https://yhbt.net/public-inbox.git/snapshot/public-inbox-${version}.tar.gz";
      sha256 = "11fvgcs4vj4jbvwij3fh3jilvmaz0qzv09jcbhxb2hkpzdymzywk";
    };
    patches = [];
  });
}