What is more ecological? Having services installed on a virtual server at a hosting provider or having a little computer like a Raspberry Pi at home?
At the hosting provider, as every servers are shared, there can be some savings if a lot of people are using the same servers.
On the other side, a Raspberry Pi has low power, so it doesn't consume much.
What would be the energy cost and temperature effect if everyone would have a Raspberry Pi at home?