Surprised no one has mentioned Suwayomi yet for manga.

There’s a Mihon extension that treats Suwayomi as an additional “source” with progress syncing as well.

Ditto. I don’t see how this is different/better from existing harnesses such as Opencode, Pi, and even “commercial” open source offerings such as the CLIs for Codex, Copilot, and Gemini, especially once tricked out with plugins and extensions.