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JOHN ATHAYDE BLUE RIDGE RUBY APRIL 2026 Learning From PERMACULTURE Sustainable So ft ware Development @johnathayde (x) @johnathayde.com (bsky) @[email protected]

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Every codebase you inherit is someone else's horse farm.

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Before you rip anything out: observe

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Permaculture (a contraction of "permanent agriculture" and "permanent culture") is a design system centered on mimicking natural ecosystems to create sustainable, regenerative human habitats and agricultural systems. It integrates land, resources, people, and the environment through mutually bene fi cial synergies, focusing on working with rather than against nature.

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https://extension.usu.edu/sustainability/research/permaculture

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3 Ethics 12 Principles

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Care of the Earth Care of People Return of Surplus 3 Ethics

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Observe and Interact. Catch and Store Energy. Obtain a Yield. Apply Self-Regulation. Use Renewable Resources. Produce No Waste. 12 Principles Design from Patterns to Details. Integrate Rather Than Segregate. Use Small and Slow Solutions. Use and Value Diversity. Use Edges and Value the Marginal. Creatively Use and Respond to Change.

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Observe and Interact. Catch and Store Energy. Obtain a Yield. Apply Self-Regulation. Use Renewable Resources. Produce No Waste. 12 Principles Design from Patterns to Details. Integrate Rather Than Segregate. Use Small and Slow Solutions. Use and Value Diversity. Use Edges and Value the Marginal. Creatively Use and Respond to Change.

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1. Observe & Interact

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git log --oneline -20

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Photo: Flickr / CreativeMornings Chicago CC BY-NC-SA 2.0

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2. INTEGRATE RATHER THAN SEGREGATE

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2011

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INTEGRATION IS NOT WORKFLOW. IT’S AN ORGANIZATIONAL REALITY.

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3. DESIGN FROM PATTERNS TO DETAILS

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First Steps: DOMAIN MODEL

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The Map is Not the TERRITORY

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ActiveRecord is SEDUCTIVE

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Name concepts before your tables. Name boundaries before you write associations. Design from the pattern.

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3.5. ZONES

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https://content.ces.ncsu.edu/extension-gardener-handbook/appendix-g-permaculture-design

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TYPE I ERROR

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4. USE SMALL & SLOW SOLUTIONS

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The system that lasts is the ONE THAT GREW

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https://martinfowler.com/bliki/StranglerFigApplication.html THE STRANGLER FIG

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https://drpicox.medium.com/the-strangler- fi g-pattern-a8ea077e4480

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Keep a SUSTAINABLE PACE

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BONUS: THE EDGE EFFECT

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https://permaculturepractice.com/forest-edge/

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The Controller IS AN EDGE

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ActiveRecord IS AN EDGE

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Your API IS AN EDGE

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Sidekiq IS AN EDGE

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https://permaculturepractice.com/forest-edge/

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BONUS: SUCCESSION

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https://permacultureapprentice.com/building-

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AI

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“The most durable systems of the AI era will be built from code that is meant to die.” https://aicoding.lea fl et.pub/3majnyfydzs2y —Chad Fowler “The Phoenix Architecture: Regenerative So ft ware”

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Thank You! www.meticulous.com www.sfumatofarm.com [email protected] @johnathayde (x) @johnathayde.com (bsky) @[email protected]