I’ve literally told my coworkers “I’m not saying we should never use dependencies. But every time you add a dependency, you should hate yourself a little bit more. Some self flagellation can’t hurt either.”

So, every time I use a library to recognize patterns on a picture, to interact with Kafka, do some SSL, or do database mapping, I should hate myself, noted

We did Elastic API integration in Java by creating and maintaining huge half-codegenerated transformer from code to Elasticsearch’s JSONs, it was a pain and it was source of more than one error

Dependences should be reviewed and audited to make sure they do what you need and they are worth using. Just making everything in-house gets you nowhere most of the time