What problem are you facing?

MRD design: https://github.com/crossplane/crossplane/blob/f5f6aac/design/one-pager-mrds.md

With the introduction of MRDs the Crossplane package manager won't create MR CRDs at provider install time. Instead they'll only be created when the MRD is activated.

We need to avoid starting MR controllers until their CRD exists, or they'll crash.

How could Crossplane help solve your problem?

Watch MR CRDs and don't start a controller until they exist.

Stopping MR controllers if/when the CRD goes away is out of scope.

POC: crossplane/upjet@33e30ba