Description: Fast build, in the context of a continuous integration pipeline, refers to an agile and efficient process of compiling code that allows developers to quickly verify errors and validate changes in software. This approach focuses on reducing the time between writing code and its validation, facilitating rapid feedback on its quality. Fast build relies on automating repetitive tasks, such as compilation and testing, enabling development teams to detect and correct errors early in the software lifecycle. This method not only improves the quality of the final product but also optimizes collaboration among team members, as everyone can access updated results continuously. Furthermore, fast build fosters a more agile development culture, where changes are implemented and tested continuously, resulting in a more efficient workflow that is less prone to cumulative errors. In summary, fast build is an essential component of continuous integration pipelines, allowing development teams to maintain a steady pace of software delivery and improvement.