Epiphany (aka GNOME Web) Flatpak'd for elementary OS
Run flatpak-builder
to configure the build environment, download dependencies, build, and install
flatpak-builder build org.gnome.epiphany.json --user --install --force-clean --install-deps-from=appcenter
execute with org.gnome.Epiphany
flatpak run org.gnome.Epiphany