[todotask]

Is age designed to encrypt large binary files, which seem to increase the file size by 2KB.

[str4d]

Yes. age encrypts large files in 64 kiB chunks with 16 bytes of overhead per chunk, which strikes a balance between file size overhead and performance (particularly when seeking).

[todotask]

That's interesting and seem to be an alternative to encrypted zip or 7z which could be used in productions?