https://docs.unity.com/ccd/UnityCCDGameOverrides.html
CcdManager does not even remotely work like this anymore, it’s a static class atleast with the Unity CCD SDK 2.1.0 installed. I got it working through simply breakpointing myself through it one step at a time as it isn’t an entirely complicated system but getting everything right took quite a lot longer than it should’ve for what is otherwise quite nicely designed library. Ie kudos for the lib, big bad for the docs 
RemoteConfig is also missing practically everything in it’s package documentation Scripting API but i’ll report that in it’s own forum separately. I can easily see someone giving up on this and picking an easier to setup service if every step of the way they’re unsure as to what is what and how it’s intended to be used / works.