Well, that's quite hard to answer :)
We used to have a public Trello board, but as time goes on, it has proven to be difficult for us to keep it updated. As this is not a full-time work (yet), juggling between day job and running this project leaves us little time to do everything. We decided to focus our efforts in actual development and support whenever time is a challenge, relegating other communication (such as devlogs and public roadmaps) into a lower priority.
That being said, I do understand that this is quite necessary, so we might try to find some simpler alternatives, maybe just a publicly visible checklist? We'll make sure to let everybody know when the solution to this is available.
Thanks!