Congrats on the launch! I can definitely understand the pain point; frequent plan/pricing iteration in the early days always leaves a pile of "grandfathered entitlements" that get carried around.

Two questions.

1) Entitlements seem to permeate systems in few ways (pricing pages & billing systems as you've called out) but also into feature flags systems like LaunchDarkly (my plan offers access to beta feature channel) and authorization systems (RBAC, FGA, etc). Do you see replacing those systems with your SDK or Planship is more of an integrator that helps keep them synchronized?

2) I couldn't tell from glancing through your SDK docs (might have missed it) but do you provide any audit/temporal history? If I store user events in a data warehouse (timestamp, customer_id, action_performed), can I determine a customers plan from that historical timestamp or only their current plan?