I’ve lived out of one backpack or another for many years. As an IT Consultant I had a custom backpack with compartments for laptop, accessories, office equipment, adaptors, chargers, plus overnight necessities, food, water, etc. All waterproof, lightweight, and sturdy. Travelling for pleasure long distance I had a larger capacity bag and a small day bag.
Wherever I was my backpack was my home. Like a human snail. Wherever I stopped for the night or even a few hours, my backpack was my home. You learned to carry only the essentials and nothing else. No luxuries or extras. No backups (that’s what cash and credit cards are for). You have to carry it so you learn to be picky about what you carry. If it can be digitized then do it. A digital copy has zero weight. Books, entertainment, data.
I got homesick a few times. Not just for people I missed but for the familiar. Your own bed, garden, space. It passes though.
These days I still carry backpacks. I have a go-bag for any emergency and a professional backpack for contract work.
Home is where my backpack is.