Create Project post type (bound to Projects taxonomy) to save meta

project-post-type.php

<?php

// Create Project post type (bound to Projects taxonomy) to save meta
function akv3_projects_tax_bindings($configs) {
	$configs[] = array(
		'taxonomy' => 'projects',
		'post_type' => array(
			'project',
			array(
				'public' => true,
				'show_ui' => true,
				'label' => 'Projects',
				'rewrite' => array(
					'slug' => 'project',
					'with_front' => false,
					'feeds' => false,
					'pages' => false
				),
				'supports' => array(
					'title',
					'editor',
					'excerpt',
					'thumbnail',
					'revisions',
					'custom-fields',
				)
			)
		),
		'slave_title_editable' => false,
		'slave_slug_editable' => false,
	);
	return $configs;
}
add_filter('cftpb_configs', 'akv3_projects_tax_bindings');