Delivering Great Developer Experiences with Platform Engineering - A whole lot of first hand accounts of building and running developer platforms. (1) the platform should include CI/CD tooling, and I presume how to package and configure apps for production, (2) use developer surveys to track usage and needs, (3) product manage the platform, with a variation being to run it like an open source project to get the benefits of transparency (and inherent product management), (4) lots of training and workshops, (5) use chat instead of tickets.