Shopify Engineering·Nov 25, 2025·10 min read52Run for your money: Engineering a treadmill that prints store credit (2025) - ShopifyWe combined FTMS sensors, Socket.IO, and POS UI extensions to turn a manual treadmill into a discount-printing machine.Read original on shopify.engineeringScore breakdownTechnical depth53Practical value60Originality60Writing quality96Source reputation86Recency0External engagement0On-site engagement0NayaRead shows a summary and links to the original article. The full article is hosted on shopify.engineering.