Creating 2d sidescroller wave shader

I just started to learn shader graph, as I need to create an ocean for my 2d sidescroller game. I’m going for this kind of look: https://www.youtube.com/watch?v=gMR3fypXHiY&app=desktop&ab_channel=ShaunSpalding
For now, I am simply interested in creating the actual moving waves.
How would you go about this? I am imagining using the sine node with a time node, and then somehow overlaying it with the blue ocean color. Any tips is appreciated!