Epiphany Technology Preview has moved from https://sdk.gnome.org to https://nightly.gnome.org. The old Epiphany Technology Preview is now end-of-life. Action is required to update. If you installed Epiphany Technology Preview prior to a couple minutes ago, uninstall it using GNOME Software and then reinstall using this new flatpakref.
Apologies for this disruption.
The main benefit to end users is that you’ll no longer need separate remotes for nightly runtimes and nightly applications, because everything is now hosted in one repo. See Abderrahim’s announcement for full details on why this transition is occurring.