In my opinion a lot of Devops comes down to improving "developer experience" (DX - another buzzword, but still). It starts with project setup and choosing tool

In my opinion a lot of Devops comes down to improving "developer experience" (DX - another buzzword, but still). It starts with project setup and choosing tools that enable this such as JS build tools that are fast. Then you have easy (and again: fast) means of running tests, continuous integration, deployment for staging (or sharing with less technical team members). This has to be as frictionless as possible so developers can actually enjoy their work. A "by-product" is that you can also more easily deploy for production.