Sadly this section has not yet been updated and brought over to the new developer docs so I can’t help here!
If someone does have a working config, we are happy to help with documenting - the repo is here:
Here is the issue for the cache bundle:
Also worth noting this PR in the new end-user docs:
We have the entire configuration section documented now (see here) so that PR will also add the things which you can document in the local config file. We could add the specifics for setting up cache providers - I don’t know if this sits best in the dev docs or the end-user docs? What do you think @mikew?