Is there a mature centralized platform, self hosted, that sync all your “AI stuff” across multiple devices? So regardless of the harness, it sync the api keys, providers, skills, and seasons for starters with other authenticated machines? Say you used codex on macos_1 through this platform, and later you used opencode on linux_3, it syncs everything to the new machine, no ssh to centralized machine, no git, none of that duct tape solutions, which they work but cumbersome.