You should setup a yunohost server for her.
But you should be upfront about being a teacher for her not being a helper.
For the others in the topic, yes teaching people to be autonomous with the digital is a lot of work (and a lot of phone calls), but it’s also really rewarding for both you and “the student”.
The Council, The Wreck, Haven, Orwell, Life Is Strange, Journey of course, The Stanley Parable, The Beginner’s Guide, Everything by Christine Love, Everything by Jonathan Blow, Inside and Limbo, Get Even, Betrayal, Kentucky Route Zero, Never Alone, Tell Me Why, A Plague Tale (both), Deathtrap Dungeon (interactive video adventure), Kholat, Asemblance, Firewatch, Her Story, The Vanishing Of Ethan Carter.
I include a bit of everything…