SPA development is everywhere because you can charge a lot more for it, and web development has become commoditized in many other arenas
Sanity is available immediately if you are willing to be paid less. There are tons of simple, non-SPA, non-stack-on-stack projects out there, they just usually pay 1/10th the complex stuff.
Sanity is available immediately if you are willing to be paid less. There are tons of simple, non-SPA, non-stack-on-stack projects out there, they just usually pay 1/10th the complex stuff.