Unfortunately IMVHO there are no usable, reasonably free mobile solutions, that's why I'm sick to desktop as much as I can. It's a more complex topic though because the main point is that a modern society need remote work, so desktops, homes with semi-autonomous power, sheds, not mobile to continuously moving between big buildings in dense areas. The gig economy need the very contrary: to push people owning nothing they need dense cities, large buildings, collective transport and so on, but that's against current tech evolution, so it will fail with much pain.