Finishing up the California launch party photos on my phone. Basic process for making a tender seafood curry — make the curry sauce, get it to just the way you like it, slip the seafood in, and cook it just long enough, uncovered, to cook through. A little water will usually come off the seafood, thinning the sauce, but then as you cook it through, that will evaporate again, so you should end up with deliciousness in just a few minutes. Works for salmon, other fish, scallops, shrimp, crab, squid, etc.
You can also cook longer, and sometimes I do, esp. if I’m making more of a mixed seafood stew, and that’ll help get the seafood flavor to really permeate the sauce, but it also ends up making the seafood itself more firm, so there’s a bit of a tradeoff there.
I suppose you if you were being really fancy, you could make a stock first, with seafood that you planned to discard, and use that as your base, then only simmer a fresh batch of seafood a little while in the stock-based curry sauce. I do sometimes do that with shrimp shells, if I’m being fancy. But it would feel wasteful to do it with actual seafood. I don’t know if anyone ever does that at fancy restaurants. I kind of hope not.
Salmon curry recipe here: https://serendibkitchen.com/2019/09/13/party-prep/