I'm really a big fan of the idea of this project. Given there hasn't been any activity in a year, I thought I'd inquire as to whether @prasmussen still has the bandwidth to review PRs and improve on this tool. After surveying available tools (include GAM), I have found gdrive to be the closest to what I actually want without unnecessary complexity. That being said, I have seen some gaps in functionality for my use case and have started working on improvements in my fork.
If additional maintainers are welcome, I'd like to throw my hat in the ring to improve gdrive and help to integrate other community contributions.