Trisquel 8 is using systemd?!

Would it not be possible in Trisquel 8 to just install a different init system if you don’t like systemd?

Trisquel uses whatever Ubuntu uses.

I guess you probably can still use Upstart if you really want to, but why would you? It's pretty much abandoned at this point; Ubuntu isn't using it anymore.

systemd!

\o/

To bad i will swich to Devuan !

I think your best bet, if trying to avoid systemd, is to use a distro that does not have it and is committed to not having it, rather than trying to remove it from a distro that is tightly connected to it and has it as a dependency for many programs. It is going to get harder not easier for Devuan down the road, and would be harder still for Trisquel to remove it from Ubuntu. Debian offers various init as options for now, but even they (mailing lists, iirc etc...) have said this is temporary, going forward they are committed to systemd unless something better is widely adopted; path of least resistance.

Just my two cents.