https://medium.com/swlh/the-case-for-building-from-source-5d1571f2c0e3

Previously I wrote about the inflection point that a particular part of your architecture will reach before you need to roll your own specialized piece of infrastructure. The summary of that article was that you probably won’t end up doing that unless you reach product market fit and then have a real success that drives scale.

What this means for most of us is that we’ll be reusing existing software for the bulk of our application infrastructure. This is absolutely fine. There is a wealth of fantastic open source projects out there. Observed from my origins as a backend engineer, I know that there’s pretty much always going to be a great storage system that does what I want it to do.