WebKit
WebKit as a TermSurf engine—embedded panes, not a separate browser UI.
What you can do
Run WebKit in a TermSurf pane for multi-engine checks next to Chromium or Ladybird. Use the same host and a different engine family. You do not need a separate WebKit browser app.
Open pages via TermSurf or Web. Selector name: webkit.
Installation
The WebKit helper is included with the Homebrew cask, with the other engine helpers. Helper binary: ah-webkitd.
Install Astrohacker TermSurf
Homebrew cask · Apple silicon macOS
brewtapastrohackerlabs/astrohacker
brewtrustastrohackerlabs/astrohacker
brewinstall--caskastrohacker
Then open Astrohacker TermSurf.app from Applications.
Configuration
Per-profile data: $XDG_DATA_HOME/astrohacker/terminal/webkit-profiles/<profile>/.