The idea that it's difficult to self-host these open source solutions is often part of the marketing but it often isn't true. Many times, I've seen companies ho

The idea that it's difficult to self-host these open source solutions is often part of the marketing but it often isn't true. Many times, I've seen companies host their own HTTP servers but outsource their WebSocket servers even though they don't require much additional DevOps skills if they used the right open source tools. Often, those companies would actually have benefited from being able to integrate their backend systems more closely. Regarding back end services; I've used various Amazon AWS services at different companies and, every time, it made development and deployment way more complicated - For example, one corporation I worked at, there was only 1 person in the whole company who had the full knowledge to work with our Lambda setup; this person worked very slowly (probably not their fault) so they were blocking all other teams in the company. It would have been much faster if the company operated the server themselves.