The method, taught.
LEG University is where the Lightwyn way of working with soil is passed on — the science of living ground, and the practice of bringing it back. Three tracks and eighteen courses, from the free Foundations open to anyone to the full operator certification. The curriculum is set out below. Join the waitlist and we'll tell you the day each program opens.
From the kitchen compost bin to a certified operator.
The ground floor
Why soil is a biology problem before a chemistry one — the plant-and-microbe exchange, and the shift from bacterial to fungal life. The free door in, for anyone curious about the ground under them.
Hobbyist to semi-pro
A ladder for growers working by hand: feeding your soil's life, home vermicomposting, brewing living compost tea, seeing your soil under a microscope, and — at the top — running a market garden on biology. No system required.
The Certified LEG Operator
The full science and technology, for those deploying the system at scale — the Living Chain, the formulation discipline, field monitoring and diagnostics, honest-claim compliance, and the restoration applications. Ends in the operator credential.
Curriculum below is fixed; content is being produced and programs open in stages. Foundations opens first and free; the Gardener Ladder and the professional track follow. Certification enrollment is opening — see the note under that track.
Living soil, explained.
Living Soil, Explained
Why soil is a biology problem before it is a chemistry one — the exchange between a plant and the community of life at its roots.
The Bacterial-to-Fungal Shift
How the life in soil moves from bacterial toward fungal, and how soil biologists read that balance.
Meet the System
A plain-language overview of the Lightwyn approach — apparatus, formulation, and measurement — without the proprietary internals.
Hobbyist to semi-pro, one rung at a time.
Home Gardener — Feed the Life
Working with the biology already in your ground, by hand, with nothing to buy and nothing to spray.
Backyard Vermicomposting
Setting up and running a home worm bin — from kitchen scraps to finished castings.
The Biological Gardener — Compost Tea
Brewing and applying living compost tea at garden scale, with an honest account of where the evidence is settled and where it is still contested.
See Your Soil — Intro Microscopy
Putting a drop of your soil under a microscope and identifying what lives there, using the recognized Ingham method.
Semi-Pro — The Market Garden
Running a market garden on living-soil principles: scaling up, selling honestly, and staying inside the rules.
The full system, for the operator.
The Science of PBSR
The deep science backbone of precision biological soil restoration — the mechanism, in full.
Field Monitoring & Diagnostics
Reading soil biology in the field — sampling, monitoring stations, and diagnostics over time.
Compliance & Honest Claims
What an operator can and cannot say — claim discipline and regulatory awareness, treated as a condition of the work.
Restoration Applications
The method across restoration domains — brownfield, mine reclamation, roadside, and agricultural ground.
The Living Chain
Keeping the biology alive from brew to ground. Includes proprietary operator material.
Formulation & the IFP
From site to prescription — the formulation discipline. Includes proprietary operator material.
The Certified LEG Operator
The operator credential — quality-control authority, field claim-discipline, and the access it grants to run the system.
The Certified LEG Operator credential gates access to buy and operate the Lightwyn system — it is a licensed program, not a paper certificate. Enrollment is opening; the program is not a live purchase yet. Join the waitlist to be told when it opens.
The through-lines.
Soil-Food-Web Microscopy (Deep)
Advanced microscopy for reading the soil food web in detail.
The Business of Living Soil
Turning living-soil practice into work that pays and lasts.
Honest Claims & the Ethos
The Lightwyn ethos — why the method measures rather than assumes, and never overclaims.
The teaching carries knowledge held by Sandy and built out by Devison over fourteen years of practice — the same lineage behind the system itself. LEG University exists so the method outlives any one operator.
Learn the method
Join the waitlist and we'll tell you the day each program opens.