I was tasked with setting up a direct-to-consumer online shop based on the fulfilment partner's platform requirements, which meant taking a default JTL shop template and adjusting it to our needs.
I ended up building a deeply customised template that uses clever JavaScript to provide frictionless usability for desktop and mobile alike - in a template that doesn't really support this.
It also comes with a custom live discount calculation, giving the customer visual signals as they approach the purchase threshold at which the order makes sense for both sides.