From Rough Ashlar to Righteous Re-Engineer
Change Advisory Board
This episode reflects on the journey from Rebellion to Responsibility, tracing how both individuals and systems evolve through disciplined self-correction. We explore the Masonic allegory of the Rough Ashlar—a person full of natural flaws—being refined into the Perfect Ashlar through the Common Gavel, symbolizing self-discipline and reflection. The 1980s punk scene serves as a living example of the unrefined Ashlar: a volatile system rejecting all authority. SLC Punk captures its collapse when chaos meets consequence—most tragically in Heroin Bob’s death. The Straight Edge...
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The Square and the Server
Change Advisory Board
In this episode, Change Advisory Board draws a straight line from the lodge to the datacenter, exploring how the symbolic working tools of Freemasonry — the gauge, gavel, square, level, plumb, compasses, and trowel — can be reinterpreted as instruments of modern Site Reliability Engineering. From the Entered Apprentice’s 24-inch gauge to the SRE’s time budgets and service-level objectives, each tool becomes a lens for understanding the moral and operational discipline behind reliable systems. The common gavel’s task of removing rough edges parallels how engineers refine noise...
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The Watchtower and the Mirror
Change Advisory Board
This episode examines modern software maintenance practices, specifically Monitoring and Observability, through the lens of Masonic symbolism to illustrate principles of operational wisdom. Monitoring is aligned with the Watchtower, focusing on tracking real-time quantitative data about known system conditions, much like a Tiler guards a perimeter to detect anticipated problems. In contrast, Observability is compared to the All-Seeing Eye and the Mirror, representing the capacity to ask questions about a system's inner workings to troubleshoot novel problems or "unknown unknowns." Together,...
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The Trestle-board and the SLO
Change Advisory Board
Join us as we uncover how the timeless lessons of structure, planning, and meticulous refinement, taught within the degrees of the Entered Apprentice, Fellow Craft, and Master Mason, are utilized by modern Site Reliability Engineers (SREs). These lessons are crucial for designing, deploying, and maintaining reliable computing systems. What You Will Learn: - The Blueprint for Reliability: Adherence to Design. Discover how SREs apply the principles of the Trestle-board (used by the Master-workman to draw his designs) to their infrastructure. We discuss the foundational importance of...
info_outlineIn this episode, Change Advisory Board draws a straight line from the lodge to the datacenter, exploring how the symbolic working tools of Freemasonry — the gauge, gavel, square, level, plumb, compasses, and trowel — can be reinterpreted as instruments of modern Site Reliability Engineering.
From the Entered Apprentice’s 24-inch gauge to the SRE’s time budgets and service-level objectives, each tool becomes a lens for understanding the moral and operational discipline behind reliable systems. The common gavel’s task of removing rough edges parallels how engineers refine noise from telemetry. The Fellow Craft’s square and level emerge as early templates for data integrity and fairness — the moral geometry of incident response. The plumb rule, once a test of uprightness, becomes the model for aligned observability: systems and people both measured against their true vertical.
Finally, the Master Mason’s compasses and trowel remind us that every great system — like every enduring fraternity — is held together not by code alone but by the invisible cement of trust, accountability, and shared purpose. Observability, in this light, is not just about data; it is the moral act of ensuring that what we build is true, just, and aligned with the architecture of higher principles.
It’s a conversation about craftsmanship in code and in character — an investigation into how the oldest working tools of humanity still guide the newest disciplines of reliability engineering.
Source #1: The Lecture of the Second Degree of Freemasonry
Source #2: Site Reliability Engineering edited by Betsy Beyer, Chris Jones, Jennifer Petoff, and Niall Richard Murphy