How can i only show posts from 1 category on homepage?

Hi there,

you can use a PHP Snippet like so:

add_action ('pre_get_posts', function($query) {
    if ( $query->is_home() && $query->is_main_query() ) {
        $query->set( 'cat', '66');
    }
});

Change the 66 to the ID of the category you want to display.

Adding PHP:
https://docs.generatepress.com/article/adding-php/