Is it possible to configure vim mode additions?

[hwine]

I'm assuming that Marimo uses codemirror for its vim mode. And I see (but not confidently) like there may be a way to extend codemirror's configuration.

I know from other apps-using-codemirror (e.g. Obsidian) that it is possible for a user to provide a custom .vimrc file (e.g. via this plugin).

Is this currently possible with Marimo? I don't think this would be in the scope of a "ui extension" as documented. Any pointers appreciated.