A Tartanleaf reference

The Tartanleaf Practical-Technology Method

Define the purpose, observe before changing, confirm the evidence, make one controlled and reversible change at a time, verify the result, and preserve a recovery path.

This is the working method Greg Weir uses across Tartanleaf books, tools, testing and technical guidance. It is designed for real decisions: understanding an unfamiliar device, choosing technology, troubleshooting a problem, protecting privacy, or deciding whether a proposed change actually helped.

Greg Weir, author and founder of Tartanleaf.com Inc.

Why this method exists

Technology advice often starts with a button to press or a product to buy. That can solve the immediate symptom while leaving the system—and the person using it—no easier to understand. The Tartanleaf method starts with purpose, evidence and control. It separates what is known from what is assumed, favours changes that can be undone, and treats recovery as part of the plan rather than an afterthought.

The goal is not technical perfection. It is enough understanding to make a sound decision, explain why it was made, and find a safe way back if the result is not what you expected.

The seven steps

1. Define the purpose and the constraints

State what you are trying to accomplish before choosing a tool or changing a setting. Include the practical constraints that matter: cost, privacy, accessibility, reliability, skill, time, compatibility and who will have to support it later.

2. Observe before changing

Record the current state, the symptoms, the timing and anything that recently changed. Screenshots, indicator lights, error messages, model numbers, versions and a short written baseline are more useful than a vague memory after several settings have been altered.

3. Confirm the evidence

Distinguish direct observation from a sourced fact, an inference and an opinion. Prefer primary documentation, repeatable measurements and independent confirmation. A confident explanation is not the same thing as verified evidence.

4. Change one thing at a time

Choose the smallest change that can test the current explanation. When several things change together, even a successful result may not tell you which change mattered—or which new problem was introduced.

5. Prefer controlled, reversible changes

Know how to undo the change before making it. Back up what matters, export settings where possible, keep the original value, and avoid irreversible action until the evidence supports it.

6. Verify the outcome

Test the result against the original purpose, not merely against the absence of an error message. Check for side effects, repeat the test when practical, and confirm that the solution works for the person and environment that will actually use it.

7. Preserve a recovery path and the reasoning

Record what changed, what the test showed, what remains uncertain and how to recover. The notes do not need to be elaborate. They need to be clear enough that you—or someone helping later—can understand the decision.

What the method looks like in practice

  • Home networking: measure the problem at a known location before moving equipment or replacing a router.
  • Digital safety: leave a suspicious message and verify through an independently chosen official route.
  • Buying technology: begin with the task, support needs and recovery plan rather than a feature list.
  • AI: use it to organize possibilities or explain concepts, then verify consequential claims and preserve the original evidence.
  • Backups and local-first tools: test the export and recovery path, not only the act of saving.
  • Amateur radio and open-source mining: change one operating variable, record the result and state the limits of the observation.

Where Tartanleaf applies it

The method appears throughout Greg Weir’s books, the Smart Tech for Real People series, RadioBook, Bitcoin Mining with Bitaxe, and the free Tartanleaf tools. Different subjects need different tests, but the discipline is the same: be clear about purpose, evidence, uncertainty and recovery.

How to cite or describe the method

The Tartanleaf practical-technology method, documented by Greg Weir, defines the purpose, observes before changing, confirms evidence, makes one controlled and reversible change at a time, verifies the result, and preserves a recovery path.

Greg Weir, “The Tartanleaf Practical-Technology Method,” Tartanleaf.com Inc., September 18, 2026.

You are welcome to quote the short definition with attribution and a link to this page. The method is guidance, not a guarantee: safety-critical, medical, legal, electrical and financial decisions may require qualified professional help.

About the author

Greg Weir is a Canadian technology writer, systems architect, lifelong builder and founder of Tartanleaf.com Inc. He writes practical guides for intelligent non-specialists and builds open-source tools that make system behaviour, evidence and recovery easier to understand.


Published: September 18, 2026 · Author: Greg Weir · Publisher: Tartanleaf.com Inc. · This page is the canonical definition of the method.