FWIW, I can confirm that the procedure works, without modification, for my system running BunsenLabs Helium (i.e. ~Debian Stretch).

Makes for a real fast boot-to-GUI -- and near-instant resume from Suspend! Ideal for an older computer mainly used as an internet tv.
No upgrade-proofness tested yet.
[NB: To anyone else who initially mistypes their username in the override.conf file (no capital letters!
