The right equipment provides self-reliance, but also confidence. Where you normally have enough with small equipment such as a multi-tool, an inner tube and a pump, you now go on the road for several days.
Think versatile. A windproof jacket can also provide warmth in the morning, arm and leg pieces can make a long set of clothes unnecessary, and you should also consider whether you can wash (and dry) your clothes on location.
Food & drink
Pots and pans can be shared, sports drinks also come in tablets and full meals can be bought freeze-dried per meal pack. We charge about 1.5 granola bars and a water bottle of isotonic sports drink per hour of cycling.
All that goes along in bikepacking bags of all shapes and sizes. The basic principle is that your necessities determine which bags you take, not the other way around. Later we'll elaborate on this. We ourselves use BBB bikepacking bags, but there are many suppliers and there is no right or wrong.
Tip: 'pack light, travel far'. Everything you take with you has to be packed and pedaled forward yourself. Besides taking strength, this also comes at the expense of comfortable riding. Spread out what you want to take in front of you on the floor. Think again if you really need it all. That whole bottle of shampoo, portable speaker or that whole set of dishes can probably stay at home.