First of all, big fan of this tool. It cuts a lot of loading time on mac vs docker and it's very easy to set up. I am pretty much recommending it to everyone who listens ( and a lot of people who don't :) ).

And here's a problem. Your project is too good to support only modern PHP frameworks. It would be great for it to be able to support WP too as it really requires such a tool. Fortunately, it's really not far from accomplishing that.

Currently, WP pretty much works out of the box for the front end. It struggles a bit on the backend though. The issue is that all the requests will always go to the index.php in the web unless file.php is appended.

Example web folder structure ( using bedrock, composer version of WP ):

web
  - index.php
  - wp
    - wp-admin
      - index.php

When going to / I see web/index.php
When going to /wp/wp-admin/index.php I see web/wp/wp-admin/index.php
When going to /wp/wp-admin/ I weirdly see web/index.php again.

Allowing the directories paths to go to the root index in them would solve this issue. I think it might be breaking change, but it would be weird that someone would have other files and didn't want to serve them, so maybe it's not.

This change would probably make behaviour more similar to how apache and Nginx work by default, so possible it would make other old-school frameworks work out of the box.

I am happy to help with some coding but probably will have to be pointed in the right direction as Go is not my strong suit.