I would like to talk about two personal pet peeves that pop up in the world of writing software and relate to developer experience. They are code quality and not invented here syndrome (NIHS). Focusing on the developer experience is like focusing on the experience of people who work in airports. They aren't the core customer but improving their quality of life will improve your customer's experience and the quality of work they deliver. Airports do this by providing expedited paths through security, designated parking, or discounted meals. You can help the people who work on your product to improve their experience when building tools.
When I say code quality, I'm referring to the style in which people write code together. If you can, I highly recommend defining a team style guide for each language you write in. This lets you set a base line so that people can develop in the same style. In the journalism world, there is a house style, which is a style guide published...