To get acquainted with the cluster-api and related providers, I reviewed:
- Cluster API Intro and Deep Dive – Yuvaraj Balaji Rao Kakaraparthi & Vince Prignano, VMware
- Build Your Own Cluster API Provider the Easy Way – Anusha Hegde, VMware & Richard Case, Weaveworks
- SIG Cluster Lifecycle – Cluster API – Development/debugging with Tilt (EMEA/Americas) – 2022-02-28
- Setting Up a Development Environment for the Cluster API Kubemark Provider
- Cluster API Provider IBM Cloud
To visualize a CAPI Setup you can use cluster-api-visualizer
To ask questions of the developers, you can join the Kubernetes Slack, follow the instructions at link.