Sure. I use multiple wallets. My zaps have been set to Strike, a custodial wallet, for 6 months because I got tired of my router going down and breaking my custom setup for non-custodial zaps. I still send zaps from my node. I receive zaps to Strike and withdrawal to my node when applicable.
Discussion
Exactly. I do something similar using self custody lightning wallet apps. You use the broader suite of tools/apps available on the lightning network. That’s a good medium to long term goal for educating people, but I don’t imagine you would try to onboard random new nostr users directly to such a complex setup/workflow where they need to understand channels, liquidity, LNURL, etc. lol