Author of Gmailr here, which apparently inspired this project. Kudos! Glad to see someone taking the ball and running with it. I haven't had time to update Gmailr lately, as it is something that needs active maintenance. The main challenge here is that Gmail will have continue to have bursts of updates that break extension libraries, with relatively long periods of stability.
Thanks James! Your library was the inspiration for the observer methods. I agree with the maintenance part but I think having this out there will help reduce duplicating efforts.
