First, I'm running macOS High Sierra, with Homebrew's PHP 7.1
I've also followed the Valet documentation to the letter, as well as trying what was on these asks: Valet (Laravel): DNS address can not be found and Laravel valet It works aaaaaand, despite all of that, when I navigate to project.dev, I just get "It works!" I was having issues pinging, but that turned out to be Stealth Mode in the macOS Firewall.
I have Laravel set up in this directory, so I SHOULD be getting the default splash page, right?
Also, in case it matters, here's the line I used to install PHP 7.1 itself: brew install php71 --with-httpd --with-pear --with-postgresql --with-thread-safety --with-homebrew-curl