Field Notes

Listening before building.

GreenTrack is being shaped not only by code, but by conversations in the field. These stories document the people, observations and experiences that are helping define what the technology should become.

Jonathan Chomba, coffee farmer, on his plot in Subukia, during a GreenTrack field research visit
Photo / Field Documentation — George Ngugi Field Research & Product Development · Subukia, Kenya
VOL. I — NO. 04 NAIROBI, KENYA AUGUST 2026

Greentrack Journal

Stories from the people behind your food.

George Ngugi with grower Erah Chomba, Subukia, following her interview and consent for documentation
Field Research · Product Discovery

Beyond the Harvest: What Erah Chomba Needed GreenTrack to Do Next

Erah Chomba grows spinach and cabbages in Subukia. Watching her work through GreenTrack for the first time — and hearing what she asked for next — reshaped how this app thinks about usability and market access.

Field Research — Farmer Voices
George Ngugi, field researcher and product developer for GreenTrackGeorge Ngugi, on one of the same field visits

Why This Developer Goes Into the Field Before Building

Software development paired with direct field research — meet the person behind both, and the plots he's visited to get here.

About the Researcher
How GreenTrack Got Here

From an idea about food to a product shaped by farmers

01
The Idea

Exploring the garden-to-table problem

GreenTrack started as a broader idea — connecting the journey from growing food to understanding, tracking, and eventually consuming it, across farmers, chefs, diners and shoppers.

02
Field Research

Speaking with people involved in agriculture and food

Rather than design entirely from behind a computer, field visits around Subukia, Kenya put the product in front of the people it was meant to serve.

03
Listening

Identifying real problems and usability barriers

Conversations with growers like Erah Chomba and Jonathan Chomba surfaced gaps no amount of desk research would have found — from interface friction to the need for market access.

04
Product Refinement

Refocusing around the farmer / gardener experience

What began as a multi-role concept narrowed into a sharper focus on the grower's side of the journey — crop tracking, plot management, crop health, and nutrition.

05
Building

Turning field insights into practical software

Features like the nutrition calculator and pest/crop-health scanning were tested directly with growers in the field, not just imagined at a desk.

06
Continuous Learning

Returning to users and refining the product

Field research isn't a one-time step. Each conversation — including the ones documented on this page — continues to shape what GreenTrack builds next.

Research Insights

What the Field Taught Me

Observations from the visits documented on this page — not fabricated statistics, just what came out of the conversations themselves.

01

Technology must be understandable

A feature is only useful if the intended user can comfortably reach and use it — something Erah's first minutes with the app made hard to ignore.

02

Farmers need more than records

Tracking crops and harvests is valuable, but farmers also need practical support around what happens after harvesting — starting with finding a market.

03

Market access matters

Erah's request for help finding markets showed that production and selling can't always be treated as separate problems.

04

Nutrition connects farming to consumption

The nutrition calculator gave growers a way to see their harvest as food with value — not just a quantity logged in an app.

05

Build with people, not assumptions

Jonathan's coffee plot exposed a problem that would have been easy to miss designing only from a developer's perspective: not every crop behaves the same way.

George Ngugi, software developer and field researcher for GreenTrack

George Ngugi

Software Developer · Field Researcher · Product Builder

George combines software development with direct field research to understand real-world problems before building technology to address them. Rather than design GreenTrack purely from behind a screen, he visited growers around Subukia — Erah Chomba, Jonathan Chomba, and others documented on this page — to see how the app actually holds up in someone's hands, on someone's plot. He doesn't only build the interface. He goes into the field to understand the person using it.

From the Field

A Few Crops Along the Way

Every story here traces back to a real plot, a real grower, and a real harvest.

  • Jonathan Chomba, coffee farmer, SubukiaJonathan Chomba, coffee farmer
  • Erah Chomba, grower, SubukiaErah Chomba, grower — Subukia
  • John Maina, farmer, SubukiaJohn Maina, farmer — Subukia
  • Tea farm, KenyaKenyan tea country
  • Coffee cherries, SubukiaCoffee cherries, Subukia
  • A Kenyan produce marketA Kenyan produce market
  • GreenTrack app dashboardThe app, in the field
  • Spinach seedling, SubukiaSpinach, early growth
  • Banana crop, SubukiaJohn's banana tree, Subukia
  • Coffee plot, SubukiaCoffee rows, Subukia
From the Editor

Every story here traces back to a real field visit

The stories in this Journal come from real interviews conducted by George Ngugi around Subukia, Kenya, with the interviewee's knowledge and, where documented, their written consent. We don't invent people, quotes, or statistics — where a detail isn't confirmed, we leave it out rather than fill the gap.

That's a stricter bar than most "customer stories" pages hold themselves to, and it means we publish less often than we'd like. We think it's the only way a page like this is worth reading at all.

Field Notes & Dispatches
FIELDGreenTrack begins field research around Subukia, Kenya, interviewing growers directly.
FIELDThree farmer stories published: Erah Chomba, Jonathan Chomba, and John Maina.
FIELDA new field profile begins for Eric Githinji, Subukia — strawberries and spinach, documentation in progress.
TEAMGreenTrack begins as a June 2026 collaboration between KCA University, JKUAT, and JHUB Africa.
ARCHIVEThe Field Gallery launches — 21 documentary photographs from the same research trip.
Community Stories

Everyone at the other end of the QR code

FIELDRESEARCH
Erah Chomba, grower, SubukiaErah Chomba, grower

Beyond the Harvest: What Erah Chomba Needed GreenTrack to Do Next

Spinach, cabbages, and a usability lesson that reshaped how GreenTrack thinks about market access.

Read the story →
FIELDRESEARCH
Jonathan Chomba, coffee farmer, SubukiaJonathan Chomba, coffee farmer

Jonathan Chomba: Following the Journey of a Coffee Bean

From the farm to the mill and eventually the market, Jonathan's coffee journey shows why every harvest carries a story.

Read the story →
FIELDRESEARCH
John Maina, farmer, SubukiaJohn Maina, farmer

What John Maina's Three Crops Have in Common

Maize, ginger and banana on one plot — and the same market-price problem waiting at the end of each harvest.

Read the story →
FIELDRESEARCH
Grace Wanjeri, produce trader, SubukiaGrace Wanjeri, produce trader

What Grace Wanjeri Wants to Know Before the Produce Arrives

A stall in Subukia, and the same question every trader eventually asks: what's coming, and what state will it be in?

Read the story →
FIELDRESEARCH
Agnes Kariuki, grocery shop owner, SubukiaAgnes Kariuki, grocery shop owner

What Agnes Kariuki Wants to Know Isn't on the Label

A grocery shop owner's question wasn't about supply. It was about what had actually been sprayed on the produce.

Read the story →
FIELDPROFILE
Eric Githinji, Subukia

Between Strawberries and Spinach

Eric Githinji grows strawberries and spinach in Subukia — a new field profile, published as documentation is still being gathered.

Read the story →
FIELDGALLERY
More voices from the Subukia field researchThe full field archive

The Field Gallery — Every Photograph, Every Voice

A produce trader, a horticulture officer, and every other frame from the same trip — the complete, filterable photo archive.

Browse the gallery →
How We Report

Every story here traces back to a real field visit, not an invented one.

George Ngugi conducts each interview in person, with the interviewee's knowledge and, where documented, their written consent. Every quote you see attributed as a direct quote is genuinely their words; where a specific quote wasn't recorded, the story says so and paraphrases instead.

  • Sourced Direct farmer interviews, conducted on site in Subukia.
  • Consented Interviewees reviewed and signed consent for documentation.
  • Labeled Synthesized insights are marked as such, never presented as quotes.
GreenTrack in the Field

A student project that spends more time on plots than in a classroom.

3
Farmers interviewed in depth
21
Documentary photographs, field-verified
1
Field research trip, Subukia
Jun 2026
Project began