I have dreadful stories about the amount of technical debt my team has faced because of one hedonist developer. He was good, but he had failed to understand the

I have dreadful stories about the amount of technical debt my team has faced because of one hedonist developer. He was good, but he had failed to understand the beauty of a boring stack. He kept reinventing the wheel, and over-engineering every part of the project. Keeping this in mind, I only pick shiny new tech if it achieves a superficial task, is fast to implement, and can be replaced easily.