It would be good to be able to install Phalcon using Aptitude, on Debian or Ubuntu systems.
Use https://debrepo.frbit.com/ ( https://phalcon.io/download -> Debian )
It's a bit out of date though (@ v1.0.1 yesterday) so if you want the latest version through .deb packages you'll need to wait for the repo to be updated or compile your own.
Thanks to the people @frbit though :)
They're pushing the latest version in a timeframe of 1-3 weeks, usually. I keep bugging them about it frequently, anyways ;)