Installing mailcow-dockerized IMAP (dovecot) only, without smtp...

Is it feasible / possible to install mailcow using docker-compose with just dovecot enabled? My use case is IMAP only (no smtp), which I’ll be using to archive emails from other accounts into mailboxes stored on a home server. I’m assuming that this would mean just including a smaller subset of services (unbound-mailcow, mysql-mailcow, redis-mailcow, dovecot-mailcow perhaps?) but from my browsing on the forums here it sounds like the containers are integrated, so I’m wondering if this would simply break mailcow. Overhead-wise, it seems less than ideal to run the full stack especially since I’ll only be using IMAP within conventional mail clients to access these mailboxes…