Tanstack Start vs SolidJS Start

[uahic]

Hi folks,

I am actually not really a webdev but had to do it in various projects anyways (used Angular or react + Spring boot backend + keycloak).

Now digging into fullstack frameworks and I like SolidJs simplicity but also the Tanstack package (at least on the first look). I am super confused whether I should start using Solid Start or Tanstack start. They seem to be similar while Tanstack looks more complex (but also potentially powerful). Also not sure whether auth should be client or server-side (using supabases weird domestic auth system locally self-hosted)

What are the biggest differences between both meta framwork thingys?
Is there a "best practices" for the auth?

Didnt found good answers so far on the web

Thank you very much