In particular I'd like to use XMR-Stak miner and use it maybe to mine Monero.
Is it possible to do this? I understand you can configure a wallet to connect to a remote node. I wonder if its possible to do a similar thing with a mining node.
From what I understand in this market, I think the pool is the best and more stable opportunity to earn small players. Although I do not deny that this of course harms decentralization, which means that there is a lot of power in pools.