Hi! I'm Matt Greer, a freelance web engineer based in Michigan.

I have deep and extensive experience building applications of all kinds. Professionally I have primarily focused on web development, but I have worked in many areas of software and technology over the years.

A few things I have created
King of Fighters 94 title screen

King of Fighters 94: Team Edit Edition


King of Fighters 94 was the first game in the King of Fighters series. It lacked the team edit feature present in all of its sequels. I reverse engineered the game and added the feature in.

    Screenshot of my game maker, Smaghetti



    A web based level creator for Super Mario Bros. 3

      JavaScript logo

      JavaScript Promises ... in Wicked Detail

      technical article

      A detailed article that implements a simple Promise type from scratch.

      By building the Promise implementation gradually, it shows the why and how of Promises.

        React logo

        React Internals Part One: Basic Rendering

        technical article

        This article series creates a small clone of React to learn how it works. We kick things off with the most basic of rendering.