I'd go further its a shame that projects like Ruby-on-Rails, Laravel, Phoenix, etc do not have a "SaaS" bundle with an idiomatic way to have a SaaS business. T

I'd go further its a shame that projects like Ruby-on-Rails, Laravel, Phoenix, etc do not have a "SaaS" bundle with an idiomatic way to have a SaaS business. There are all kinds of nuances to running a good SaaS business that the platforms could provide a good starting ground for if the people who built their businesses on those platforms re-invested into it. For instance: including separate DBs for users so they can be pseudo-anonymized throughout the application and deleted from the user table (GDPR request for instance). This allows your primary DB to be un-affected and doesn't require you to remove that person from all back-ups with surgical precision. Unless you're aware of those types of concerns - you're unlikely to build it on your own.