Ask HN: How do you deal with distribute CI definitions?

With the move to CI configuration files stored on each repository (.travis, .buildkite, Jenkinsfile, etc) versus a central location. How do you deal with keeping all pipelines standardized? Do you have a central CI team that touches all these repos (and has the autonomy to do so)? Or is it up to developers to keep things updated? Say you want all pipelines to have a linting step, how would that happen in your organization?