Some subsite with a different URL?

I’m wondering if I shouldn’t adapt the htaccess with rewriteRule

You could try manually editing the site URL from Network Admin -> Sites -> Edit

That is what I’ve done but it doens’t work if I set an extra ‘/’ in the url. I’m continuing to test with an adapted .htaccess

I haven’t found a good way to do nested subfolders yet.

Yep I’m blocking on that actually
wordpress multisite allow me to change the Path, siteurl and home, but if I’m adding a virtual subfolder in the siteurl for one of the subsite it doesn’t work…

I’m just reading this: https://maisonbisson.com/blog/post/14052/wordpress-hacks-nested-paths-for-wpmu-blogs/

It looks interessting…