What is the largest blocker for self hosting among people, that aren't too deep into tech? What would be the requirement for the family next door, to self-host their services, or the Grandpa down the street? I've helped an 85 year old granny to get familiar with Android. She was using a Samsung phone and tablet for 4 years until she died last winter at the age of 89. E-mail, online banking, shopping, taxes, messaging - she did it all. It's more a function of familiarity and time invested, rather than difficulty. She wasn't self-hosting, but it's similar, right? Android makes it easy to manage your device. You can migrate data to a new device without knowing a lot. You don't need to know a lot, to sync your device to the cloud for backup. Managing apps and files had such a low learning curve, that an 85 year old grandma, that's never been in touch with technology ("That was my husband's job") was able to learn it. Can we expand that to servers?

I want to install an app on my phone -> by installing it on the phone, it installs a server component to some server I control (maybe my router?) -> management happens through the app on the phone/tablet/pc. Would that be possible? Do you have ideas of how to approach this, maybe?