dovecot-userpassdb: Custom email passwords in Dovecot

I've been meaning to set up IMAP access to mail on my server, since it can be somewhat inconvenient to use SSH to read mail on a phone. The catch was that I wasn't interested in storing my regular password in plain text in a mail application on my phone, and I didn't really feel that installing a LDAP server on a machine used by two people was optimal. After making some research on ways to achieve this with Dovecot, I rolled up my sleeves during Christmas, and wrote an initial version of something.

Then, finally, a few weeks ago, I forced myself to polish it into a good enough state that I would be willing to deploy it on a live server, and at last, today I released the first version of dovecot-userpassdb, a simple implementation of Dovecot's checkpassword interface, which stores every user's email password in their homedir, hashed using passlib.

I invite anyone with a similar use case to try it out, and report any issues you might encounter with it.