Nut.new is a newly launched AI tool designed to streamline the development of full-stack applications by engaging users in a discussion to define requirements and subsequently developing a detailed plan that includes page layout, features, database specifications, and necessary APIs. It begins with creating a non-functional mockup before implementing working components, running tests, and utilizing Replay’s time travel debugger to resolve issues, merging changes only when tests pass. This process allows users to obtain a deployable app with minimal effort, although the tool acknowledges the initial output may require further user-specified modifications. Nut.new excels in building apps with database management capabilities and simple user interfaces, such as an expense tracking app, a CRM for customer support, and a smalltalk generator. The service also promises guaranteed reliability, offering a higher-tier service where users are informed of feature implementation confidence and pricing, and are assured of receiving completed work even if development exceeds time estimates. Nut.new aims to be a valuable development partner, especially effective in debugging, ensuring efficient feature completion.