On Thursday 31 December 2015 11.10:00 Slávek Banko wrote:
Official packages are built on 'QuickBuild', which is an implementation of the Ubuntu Launchpad. Therefore, all distributions are called 'Ubuntu', although it is a Debian or Raspbian.
-- Slávek
Thanks Slávek for enlightening me on this (I had never bothered to look what QuickBuild is...).
Thierry