I theoretically have Diun setup, but realistically I just run my Ansible playbook weekly and have most containers set to latest. The exceptions being things that sometimes need special steps when upgrading such as Immich or critical stuff I want special attention such as Athelia/Authentik, for those I subscribe to their releases via RSS so I can update them easily, which usually is just changing a value in my Ansible configuration, but if extra changes are needed I can adapt them.