Sign the dist as the last step before creating the archive. Take care not to modify/regenerate dist meta files or the manifest.

Error: gpg: Signature made Fri 08 Jul 2022 07:06:06 PM JST gpg: using RSA key C2E15D4EF1D26573A85F25F03521A36D7CDCA07E gpg: requesting key 3521A36D7CDCA07E from hkp server keyserver.ubuntu.com gpg: Can't check signature: No public key ==> BAD/TAMPERED signature detected! <==

Add a META.json to the distribution. Your buildtool should be able to autogenerate it.

Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.