PGP/GPG is a complicated mess designed in the 1990's and only incrementally updated to add more complexity and cover more use-cases, most of which you'll never need. Part of PGP/GPG is supporting a large swath of algorithms (from DSA to RSA to ECDSA to EdDSA to whatever post-quantum abomination they'll cook up next).
Signify/Minisign is Ed25519. Boring, simple, fit-for-purpose.
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PGP/GPG is a complicated mess designed in the 1990's and only incrementally updated to add more complexity and cover more use-cases, most of which you'll never need. Part of PGP/GPG is supporting a large swath of algorithms (from DSA to RSA to ECDSA to EdDSA to whatever post-quantum abomination they'll cook up next).
Signify/Minisign is Ed25519. Boring, simple, fit-for-purpose.
You can write an implementation of Minisign in most languages with little effort. I did in PHP years ago. https://github.com/soatok/minisign-php
Complexity is the enemy of security.