Acessing vitepress router w/o enhanceApp

[elringus]

I'm working on a plugin for vitepress, which needs to inject a plugin to md parser and attach a listener to router.onAfterRouteChanged.

While accessing md parser is straightforward, is there a way to access the router purely via vitepress config, w/o requiring user to create theme/index.js and write enhanceApp boilerplate just to enable the plugin (in addition to injecting it in vitepress config)?