I think for people in need to get started quickly Firebase is perfectly suited to start without much hassle. For me personally I can get my personal PHP stack (

I think for people in need to get started quickly Firebase is perfectly suited to start without much hassle. For me personally I can get my personal PHP stack (Percona mysql server, nginx, php8.1-fpm) running on a fresh debian server within 10 minutes. However I don't have the experience (yet) what I need to change in my setup to scale up to very many concurrent users. So far I assume my setup should be able to handle few hundreds connections in the same second.