The Vercel Toolbar is great. Our stakeholders all love it.
There are some things we'd like to add into the toolbar/menu, but it doesn't currently support custom commands. We don't really want to implement our own toolbar and menu, as the one provided has a rich feature set.
We'd like an option to add new items to the toolbar and/or menu, possibly using an approach similar to Astro's: https://docs.astro.build/en/reference/dev-toolbar-app-reference/