Disclaimer: excuse my ignorance but this is an honest question. Regarding “1. Uses plaintext private keys in memory and has no support for yubikeys, nitrokeys,

Disclaimer: excuse my ignorance but this is an honest question. Regarding “1. Uses plaintext private keys in memory and has no support for yubikeys, nitrokeys, or other smartcards”. What is the alternative? Aren’t secrets in memory always plaintext unless you are using something external like a hardware security module chip?