Difference between Casa Node and Pierre Rochard Lightning Power Node Launcher

[WeHODLed]

I'm learning about Lightning and I have some questions:

1. Casa Hodl's Casa Node and installing your own node, e.g. Pierre Rochard's Lightning Power Node Launcher on an old computer, is that the exact same thing?

2. So it's a node that just verifies payments, right?

3. And it pays a (very, very small) fee of a couple of sats, right?

[WeHODLed]

Can someone help me?

(Sorry, I guess I have posted this in the wrong forum?)