Can 8.0 be added to point to 8.0.0rc1 and 8.1 to point to nightly?
FYI, packages for Ubuntu are already available at https://launchpad.net/~ondrej/+archive/ubuntu/php-qa. As of today no xdebug extension yet.
I’ve managed to build PHP 8.0snapshot binaries for recent Ubuntu releases:
They are available for use now.
Some further tweaking may be necessary.
I don’t think the tooling can cope with versions that can’t be built with