According to Ecryptfs kernel module - #2 by miguelinux, ecryptfs is bundled with ClearLinux, but commands such as ecryptfs-migrate-home seem not to be available and I can’t find them in any of the swupd bundles.
I want to avoid full disk encryption to enable rebooting the system remotely. I assume a full encryption would require entering the encryption passphrase every time the system boots before allowing any external ssh connection.