Explore distributed mutual exclusion techniques using the proposed Boost.AFIO library in this comprehensive conference talk from ACCU 2016. Delve into file system concurrency fundamentals, starting with first principles and progressing to a high-performance distributed mutual exclusion implementation using atomic file append messaging. Learn about the portable asynchronous file system model provided by Boost.AFIO and its advantages in creating write-once, run-anywhere file system algorithms. Compare the scalability of various file system-based mutual exclusion methods across different operating systems and file systems, including networked environments. Gain insights into the rich suite of primitive operations offered by file systems and their unexpected surprises. While the live demonstration was omitted due to technical issues, access the presentation slides and a working build of the algorithm through provided links.