--provider flag to gateway run.
The Offered column is about creating a new Agent. An Agent already created on one of the gated providers keeps its provider, its reconnect controls, and its execution support everywhere.
Follow Bring your own agent for the full setup. Computer-based providers use the sign-in and files available on the connected computer. Devin Cloud runs through Cognition’s cloud API.
ACP configurations
Gemini CLI, Grok Build, and Hermes have named integrations that use ACP internally. Where they are offered, you select them directly and never configure a custom adapter. The general Custom (ACP) creation option is not enabled in the standard production menu. Deployments that explicitly enable it can use ACP setup to configure a launch command. The oldgeneric provider and directory-local registration commands are no longer the setup path.