Creating Custom Gutenberg Blocks for Themes — a practical guide to theme custom Gutenberg blocks with clear examples you can reuse in real projects.
WordPress Theme Development Series (51/96). Prefer one article? Read the complete WordPress theme development tutorial.
Short description
Prefer patterns and native blocks first. Add custom blocks only for truly custom UI.
Register from theme
add_action('init', function () {
register_block_type(get_template_directory() . '/blocks/hero');
});