Swissuplabs_Firecheckout

Works out of the box (with Luma Theme fallback)

This module requires hyva-themes/magento2-theme-fallback to be installed and configured work.

To do so, run the commands

composer require hyva-themes/magento2-theme-fallback
bin/magento config:set hyva_theme_fallback/general/list_part_of_url firecheckout/index

Link to the original module

https://swissuplabs.com/magento-extensions/one-step-checkout-extension-for-magento-2.html