Shimoda Action backpacks are perfect for this. the bottom uses a core unit for your camera gear and an expandable roll top unit for stuff....rain coat, tarp, puffy, coffee gear. Although I am pretty coffee geeky (roast my own coffee) I will grind my beans at home... for a day hike. My good grinder is more uniform than my hand grinder. I use an aeropress and 3d printed a container that fits in plunger for coffee and a unit that attaches to filter that holds extra filters... so the whole setup is very light and compact. titanium cup/pot for boiling water and msr pocket rocket. small can of butane.