Bookshelf lighting options

Looking for something similar shown in the pic, wondering if anyone can recommend what product they used or tips.

I have a socket on the bottom of the shelf connected to the wall switch, and each shelf can be pulled out. So I guess wired led strips is the best way to go vs pot light type? Obviously prefer not to see the actual fixtures itself during the day.

Looking at some kits on Amazon, it seems like majority of them have a UL rated power adapter but not the lights itself?