A chance encounter with a failing osv-scanner job, gave me the opportunity to contribute to a Google Open Source Project, learn more about Go, and help others avoid running into the same issue in the future.
Embedding content within an existing site that you do not control, can be made possible with PostCSS Prefix Wrap, including third party libraries that you do not maintain.
Maintaining legacy CSS critical to support parts of your website that can not yet be upgraded, can be made maintainable with PostCSS Prefix Wrap, including third party libraries that you do not maintain.