I've been looking at Destack for a while, late last year, I tried and abysmally failed at making a visual website builder using GrapesJS. It was a little too big of a thing to attempt all by myself, it did not go well, that project is frigging hard to wrap my head around. I kept getting lost and the docs seemed to be out of date so I just didn't have a clue.
Destack was a bit too simplified for what I was trying to do, I wanted an element properties panel on the right, asset browser and a bunch of other random things. I'll say this though, it was damned easy to install and host. If I ever rekindle that idea again, I'll probably start here add on to it rather than just starting from scratch.
I wouldn't have figured it all out without catching this YouTube tutorial on it last night, it's a bit out of date but it got me started.