PAthinfo and Permalinks to pages

Hi,

I’m trying to load pages regardless of the path as long as the top part matches a page. For example, I want:

https://mydomain.tld/pageslug/var/data/something/

to load (not redirect) the same page as:

https://mydomain.tld/pageslug/

or load the page as:

https://mydomain.tld/pageslug/?vars=var/data/something/

Any suggestions? I’ve tried all kinds of re-writes in the apache config and htaccess, but can’t get either to work.