Running Kirby 3 on PHP's built-in webserver?

Anything that is not the built-in server :wink: If it works for you, that is fine.

For alternatives check out this post: Webserver recommendation for local development (Mac)

Personally, I’m still on Mamp, my tests with Valet/Valet+ haven’t been that successful yet and I can live with the delay it gives me on Mojave (not recommended for people in a rush).