The Crucible team begins development of the storage system

Alan and James join the team and start working on implementing the storage system. Alan works on the lowest layers, interacting directly with the bits on disk, while James focuses on simulating different failure modes and testing the system. They utilize Rust and create extensive testing tools to ensure reliability and allow for future refactoring. James demonstrates the ability to boot on Crucible, marking a significant milestone. The team develops a suite of tests, including unit tests and integration tests, to cover different scenarios and failure conditions. Matt joins the team and works on improving performance, leveraging the extensive test suite and Rust's ability to make confident refactorings. They optimize different parts of the system, such as changing the on-disk format and replacing SQLite with raw files for storing metadata. The team continues to iterate and make improvements to make the storage system faster and more efficient.