A Sphinx project that builds a simple redirect to the "canonical url" on readthedocs.
Since readthedocs has no ability to redirect to a new server, there's no way for any established project that used the readthedocs.io domain to ever move anywhere else without frustrated users.
Therefore, this project fixes that! Simply go to whatever readthedocs project you have which you'd like to redirect, point it at this github repo (or a fork you make yourself in case you're worried I'm going to change something! >:) ) then enter the desired base redirect into the "Domains" page, click the "canonical" checkbox and save. Then build! You're welcome.
When people hit the root of your docs, it will redirect to the canonical URL.
RTD doesn't yet allow us to set up a 404 page, but when they do, we can then work on getting all the other pages to redirect cleanly to the target URL.