An ACME protocol client written purely in Shell (Unix shell) language.

Full ACME protocol implementation. Support ECDSA certs. Support SAN and wildcard certs. Simple, powerful and very easy to use. You only need 3 minutes to learn it. Bash, dash and sh compatible. Purely written in Shell with no dependencies on python. Self-contained, just one script is needed to issue, renew and install your certificates automatically. DOES NOT require root/sudoer access. Docker ready. IPv6 ready. Cron job notifications for renewal or error etc.