[yahyaheee]

This is the best I can find https://kubernetes.io/docs/reference/using-api/api-concepts/ there used to be a better doc on this but I can't seem to find it again.

Runtime scheme and the k8s machinery can be pretty awkward. Scheme is just a way of registering the available datatypes by group/version/kind so the client can look at any given object and figure out if it knows how to decode it.

[harpratap]

This doesn't explain it at all, specially the ecosystem surrounding schemes - informers, cache clients and various other code generators for typed as well dynamic API clients