Ash Jackson, I love what you've done here. I'm pretty new to permies and PEP, but I'm loving the concept. I've known of Trello, just never used it so I'm not sure if it can even do what I'm thinking.
As I look at all the BBs, like many I'm sure, I'm overwhelmed by how many there are. My thought process is to break down the badges into individual BBs and schedule them out. My thought is to categorize the individual BBs like you can label the badges in Trello. This way I can queue up and sort BBs regardless of what badge they are in. Can I do this in Trello without remaking the entire thing? My initial thought was
https://airtable.com/. It allows the user to link fields in tables like a database and then create a Kanban off of that data. You mentioned if for us to reply if we wanted to see another free option. I would love to see AirTable as an option. Thoughts?