How do you put two babies to sleep??

This is a question for parents of multiple children. We have one nine (almost ten) month old right now and I nurse her to sleep and we bed share at night. Every so often I consider gentle sleep “training” because I don’t want her to need me to put her to sleep into her toddlerhood. And I’d really like to cuddle (and what not) with my husband more at night. I’m thinking of the future of if and when we have a second child. If my first is still nursing or needing to be rocked to sleep for nap and bedtime, how will o put the newborn/baby to sleep too? It makes me a little anxious thinking about it because I don’t want one to wake the other and I don’t want to neglect my first child by spending so much time getting a newborn/baby to sleep (because I look at how much time I take with my first born and think, “but can I do this all again when she’s a toddler?”)

What do you do? Or what did you do? Any advice?