MapProxy
From Wildsong
There are some map services that are unreliable because they are unreachable sometimes for days. I think I can solve this problem using MapProxy though.
I started to install mapproxy directly on the host then realized yet again I'd be making a bunch of changes to the host just for this one app.
I am developing a relatively portable Docker project of my own now, I want it to run on Windows but right now it's targeted at Linux because it's easier.
I found a Docker containing miniconda and am using that right now.
My github repository is https://github.com/wildsong/docker-mapproxy.