Tools & Experiments

A whole learning-management system standing up on plain PHP: catalog, enrolment, lessons, quizzes, certificates, chat and an AI tutor. The broadest thing I have built end to end on my own.

Expenses, budgets, clients, quotes and invoices in one place, built to find out how much of a bookkeeping workflow a focused internal tool can actually cover.

A projector-mode walkthrough of how air data, attitude and heading reference and the display units of a glass cockpit actually depend on each other.

A concept for finding and verifying local businesses in Guyana, where the hard part is not the listing but proving the business is real.

A product concept for audit management: engagements, findings, evidence and reporting held together instead of scattered across spreadsheets.

A fuel uplift calculator that installs to the home screen and keeps working with no signal, which is the point when you are standing on an apron.

Fuel planning across a fleet, with the figures for each airframe held in a database instead of retyped from a card every time.

A fault and diagnostic readout rebuilt in the browser to match how a glass cockpit display actually looks and behaves, close enough that pilots recognise it on sight.

Aircraft maintenance exam revision reshaped around the phone, one card and one thumb at a time, so it works in the gaps in a day rather than at a desk.

A drill covering gas turbine theory, with the question bank written from real course material rather than pulled from a generic pool.

The companion drill on jet engine systems, running on the same engine as the gas turbine quiz to prove the format carried across a second syllabus.

The general purpose engine the subject specific drills above were built from. Kept around because it shows where the others started.

Grade point average for the AWT programme, with the weighting rules exposed in the interface so a student can check the arithmetic by hand and trust the result.

A class birthday calendar that renders a shareable card image for each person, generated in the browser with nothing sent to a server.

A complete implementation written to find out whether the game loop, rotation and collision handling would stay readable inside a single file. They did.