Stumbled across this tutorial video recently by SkyFish, which demonstrates a project built with Kobweb using Mongo DB on the backend:
https://www.youtube.com/watch?v=VVNq6yovU_0▾
I haven't had a chance to go through it yet, but instead of hoarding the link until I had some time, I thought I'd share it as people in here might find it useful. From jumping through it, it looks like they surface a bunch of useful, practical advice for a fullstack project.
Their YT channel looks like a relatively new one, and the creator is clearly working hard at producing regular content. I'm sure they could use some more views, so consider taking a look. (I promise I am not in any way affiliated with the channel)
They also have videos about Jetpack Compose, HTML basics, and best practice discussions, plus more here: https://www.youtube.com/@SkyFishLLC/videos