Linear's zero-bug policy is a strategic approach to maintaining high-quality software by addressing bugs immediately based on their severity, with high-priority bugs fixed within 48 hours and others within seven days. This policy arose from the realization that delaying bug fixes causes unnecessary user frustration and effort, leading the team to clear an initial backlog of 175 bugs over three weeks. The zero-bug policy is ingrained in Linear's culture, prompting engineers to prioritize quality and avoid introducing bugs, which fosters a collaborative relationship with users who appreciate quick resolutions. Weekly dashboard reviews help manage workloads and resource allocation, ensuring that engineers maintain a balance and preventing the accumulation of bugs. This approach not only improves the product but also transforms customer interactions into positive experiences, turning users into advocates and enhancing the company's reputation for reliability.