Personae

Sysadmin

Creates the hosting service, connects it to a resource provider (for instance OVH to get VM), connects it to a payment provider (for instance a stripe account linked to a bank account), answers support requests from Admin and billing, upgrades the hosting service.

Gitea admin

Creates the instance, pays the bills, has admin rights allowing them to get backups, configure the DNS, terminate the instance, is the contact point for legal matters in case of abuse.

Gitea user

Has an account on the gitea instance for administration purposes or is a non-privileged user.