Lightning Node on a Raspi 4

I have a bitcoin full node that I use for nothing and I have been considering adding lightning to it.
If you want to run a node, you need a stake to get in the game. It is like the gold that a bank keeps to prove it can handle your money.
Once you have that you have to transfer it from bitcoin into lightning. At the moment that is very not free.
Once that is in, payments can be virtually free depending on the cost of the channel you end up using.
Channels are kind of hard to understand but I did find something called autopilot that could manage it for you.

Lightning would be a cheaper way to pay SNOs but then storjlabs would have to buy bitcoin rather than use their storj coin stock.
Then, would there be problems with channels being depleted because payments are one way from them to SNOs?
The SNO would just need a lightning wallet, no?