You can grab the in-progress version of the Twenty Twenty-One Blocks theme from the theme-experiments project on Github.

If you’re a theme developer, the official documentation provides all you need to know about block-based themes.

If you’d love to contribute to the Full Site Editing Experiment, submit your feedback here.

Default WordPress themes are great starting points to learn the basics of theme development and get you started with building custom child themes.

Default themes follow the guidelines of the official WordPress Coding Standards and are compliant with web standards.

Is there any better place to learn to code?