Advice for Shared Test Setup

Current Server Setup MacOS Server 10.10.5 Apache 2.4.16 mySQL PHP 5.4 (yes I know...) git 2.4.9

Apache is set up with dynamic routing similar to Valet but uses an externally accessible domain so we can share with clients during development.

We then mount a folder (effectively the equivalent of a www folder) from the server using AFP and can then create/edit/maintain sites built with our Symfony based cms very easily.

Now, I would like to move us to use Laravel (at least in part) and need to figure out the best way to set up a shared testing environment going forward.

Ideally, we need to keep the ease of access that AFP provides and we need a way to keep the legacy stuff running even if that means spinning up something like a digital ocean droplet specifically for any sites that can't (or more likely won't) be moved to PHP 7.

So, what do people suggest/recommend?