It would be helpful to expand the prerequisites section with installation guides for each:

[uwe-mayer]

Description

This is part of enhancing Greenhouse Installation Experience

Acceptance criteria

• Flux Controllers + CRDs (provide an installation guide for Flux via Kustomize or Helm with the components and configuration required for Greenhouse, including):
  • The Flux version supported by Greenhouse with the required Flux components
  • NetworkPolicy to allow the greenhouse namespace to access Flux artifacts (if applicable)
  • PersistentVolumeClaims for Flux components
  • Recommended performance tuning: concurrent workers, requeue intervals, resource limits, and leader election settings
• cert-manager (required for Greenhouse webhooks)