With Cardano you would have had to have coins in Detalus (sp?) wallet or that Yorgi wallet back in December when they did a snapshot and then you can setup the thing on the incentivized testnet and you join these staking pools.

I only had 6000 or so in the wallet at the time of the snapshot but I"m earning maybe 3 of them a day and I don't have to have my computer on or anything for it.

It is all delegated to the pool....etc.