This courselet explores two key techniques for minimizing storage usage in Linux using the Btrfs file system: data deduplication and compression. Learners will mount Btrfs volumes, use duperemove to identify and eliminate duplicate data, and verify space savings with disk usage tools. The courselet also covers enabling compression options in Btrfs and observing their effects on data storage. By the end, learners will gain hands-on experience in configuring efficient storage systems with Btrfs using standard Linux tools and commands.