Wordpress is one of the most powerful frameworks upon which most of the world's powerful sites run on. There is the commercial version at wordpress.com as well as the non-profit DIY installation for free at wordpress.org.
To launch the WordPress block editor, click on**Posts**>**Add New**or**Pages**>**Add New**.
More info on editing via Wordpress can be found [here](https://wordpress.org/documentation/article/wordpress-block-editor/). Primarily for Vivaldi blog usage currently.
Developer experience is a big part of[Playground Philosophy](https://github.com/WordPress/wordpress-playground/issues/472)– a single`<iframe>`tag is all it takes to integrate Playground with your application: