Alter the full list of installation tasks.
You can use this hook to change or replace any part of the Drupal installation process that occurs after the installation profile is selected.
$tasks: An array of all available installation tasks, including those provided by Drupal core. You can modify this array to change or replace individual steps within the installation process.
$install_state: An array of information about the current installation state.
function hook_install_tasks_alter(&$tasks, $install_state) {
// Replace the entire site configuration form provided by Drupal core
// with a custom callback function defined by this installation profile.
$tasks['install_configure_form']['function'] = 'myprofile_install_configure_form';
}