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Mark Tyler

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For many years I have been working on various projects relating to data, computer software, operating systems, art, design, photography, psephology, mathematics, and economics.

Sometimes this work is for others, sometimes for me; sometimes its public, sometimes its private; sometimes its serious, and sometimes its rather frivolous.

This page signposts my publicly available work which may be of interest to curious visitors.


Here is a list of projects on the web that I have been responsible for creating. Select a project name to go to its website.

mtCellEdit (2008-2018)

This began as a simple spreadsheet program and then became much more as I added other GUI programs, command line programs, and libraries to explore my ideas.

mtMintKit (2008)

A minimal widget toolkit for SDL. With modern software growing ever larger and more ambitious, I wanted to build a small footprint, C language based, widget toolkit.

mt6502dis (2008)

A 6502 disassembler. I created this for archaeological purposes: I wanted to examine some programs from my old Acorn Electron.

rgbPaint (2007)

A fork of mtPaint. I created this as a prototype after someone from the One Laptop Per Child project asked if customizations would be possible. The purpose was to change the UI and back end of mtPaint to be simpler.

mtPaint (2004-2006)

A pixel art and photo editor. Despite its humble origins as a rather niche program, once I had expanded its features it began to be included as a default program for distributions such as Lubuntu and Puppy Linux. In 2007/8 it was bundled with the Linux version of the Asus Eee PC netbook device.


If you wish to contact me privately about my work, please do so here:

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For the latest updates on my work please visit the following sites:

Twitter is updated regularly for all events.

Blogger is updated occasionally for major events.

GitHub is updated regularly for all code changes.

Google Sites is updated regularly for all code changes including an outline of the changes for each module.