@julian That would be awesome, Julian. As @KnownSyntax said, it is simple things like that that makes it easier to present NodeBB as a solution to other moderators and users. The engine is already head and shoulders above rest.
ACP as a plugin/module. Introduce new namespace, for example nodebb-acp-somename
So you will have:
For themes: nodebb-theme-somename
For plugins: nodebb-plugin-somename
For ACP: nodebb-acp-somename
Encapsulate current ACP to acp-module, and see, in near future, how 3rd party ACP panel will popup (Angular based, or Material based, or something another...)