Continuous integration with Debian virtual machines

[André Rodier <andre@rodier.me>]

Dear Debian users,

Anyone know a hosting service, like GitHub or GitLab, offering recent Debian virtual machines to run tests ?
The last time I checked, they offered old Ubuntu versions or docker images, but I need a full Debian VM. 

For contextual information, the source code is here: https://github.com/progmaticltd/homebox

My tests are relying on systemd services as well (so no docker), and some of them are pretty low-level.
The packages names differences are big enough for the tests to fails, and I am not interested porting my solution to Ubuntu.

Thanks for your insights.

André Rodier.