https://blog.jim-nielsen.com/2023/html-web-components/ https://blog.jim-nielsen.com/2023/html-web-components/ - Jim Nielsen has a series of posts on how to use

https://blog.jim-nielsen.com/2023/html-web-components/ https://blog.jim-nielsen.com/2023/html-web-components/ - Jim Nielsen has a series of posts on how to use made up HTML tags in a way that doesn't just fail to nothing when the javascript defining the custom-element doesn't get successfully executed.