A lot of engineering fads go in circle.

Architecture in the 80s: Mainframe and clients.

Architecture in the 90s: Software systems connected by an ESB.

Architecture in the 2000s: Big central service and everyone connects to it for everything

Architecture in the 2010s: Decentralized microservices that communicate with queues.

Current: RabbitMQ and Kafka.

... Can't we just go back to the 90s?

I hate fads.
I hate when I have to get some data, and it's scattered on 20 different servers, and to load a fucking account page, a convoluted network of 40 apps have to be activated, some in PHP, others in JS, others on Java, that are developed by different teams, connected to different tiny ass DBs, all on huge clusters of tiny ass virtual machines that get 30% load at peak hours, 90% of which comes from serializing and parsing messages. 40 people maintaining this nightmare, that could've been just 7 people making a small monolithic system that easily handles this workload on a 4-core server with 32GB of RAM.
Tripple it, put it behind a load balancer, proper DB replication (use fucking CockroachDB if you really want survivability), and you've got zero downtime at a fraction of the cost.

Just because something's cool now, doesn't mean that everybody has to blindly follow it for fucks sake!

Same rant goes for functional vs OOP and all that crap. Going blindly with any of these is just a stupid fad, and the main reason why companies need refactoring of legacy code.

Scaled custom help desk software across 5 school districts. Way harder than it sounds when you realize that we needed a tunnel to get an external site working, complex routing to get the servers to communicate with one another without exposing one districts network to the others. And I also made it auto deploy on a successful CI test. The only thing that really perfectly worked on the first try was the database (CockroachDB). Everything else was a complete mess of DNS and routing rules.

RethinkBD, CockroachDB, am i missing something!!

Just migrated my custom help desk software for work to cockroachdb! Scalability here I come fucking come! And no more fucking MySQL Master Master configs to deal with.