Be warned that the state of docs is very weak, and that although the Solid team acknowledges this issue and are working on a beta version of the docs¹, the effort really crawls along. It's also really hard to get help. Maybe there are many Solid lovers, but there aren't enough Solid intermediates to help prune the support forum. I attribute this to slow progress of the docs.

[1]: Note that this docs effort doesn't include SolidStart, which is a big bummer.