(1) - Svelte is used for POS systems in Brazil. Roughly 200,000 POS devices are currently in the cities of Brazil. The device runs a very outdated WebKit on extremely memory-constraint hardware.
(2) - They tried different frameworks. None of them could be used because when you press a button, it responded half a second later. Of course, users would be more likely to press it twice and may end up overcharging the customer. But when they tried Svelte, it worked smoothly.
(3) - This POS is built by Stone - A Brazilian company that specializes in integrated solutions for all types of entrepreneurs. This reveals the amazing power and potential of @sveltejs for low memory devices.