𝗪𝗵𝘆 𝗠𝗼𝘀𝘁 𝗪𝗼𝗼𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗣𝗢𝗦 𝗦𝗲𝘁𝘂𝗽𝘀 𝗙𝗮𝗶𝗹 (𝗔𝗻𝗱 𝗛𝗼𝘄 𝗜 𝗕𝘂𝗶𝗹𝘁 𝗢𝗻𝗲 𝗧𝗵𝗮𝘁 𝗗𝗼𝗲𝘀𝗻'𝘁 𝗦𝘂𝗰𝗸)

Every developer who has ever wired up an e-commerce catalog to an in-person physical till knows the...