The DragonFly site has a recently-updated page describing how DPorts is assembled and the process to contribute.

It does need the criterion for when it’s ready to release – either a number of working ports, or certain key ports buildable, or a combination of the two.  Something like “Chrome, Apache, nginx, MariaDB, Postgres, and X11 build, and over 75% of packages in general are successful, with less than a 10% decrease in buildable packages from the last dports release”.  I just made that up, so it’s not an actual threshold.  But it could be?