Hello guys. some months ago I did a hack in Decap CMS to host static api's. I made some great updated there now.
https://github.com/walmello/minimal-decap-cms/tree/mainnow it's possible for the client create their own collections without messing up with YAML files.
just access the /admin path. you will see a tag above saying it's in development mode.
Collections created this way are builded into the "client version" of the CMS. its like a CMS that generates a CMS π