This website uses the open source LEMP stack.  The webserver consists of NGINX webserver with PHP-FPM for dynamic pages. (I no longer use Apache for this site). The server software runs on a Linux-based Virtual Private Server at MediaTemple. Static assets such as media, stylesheets and javascript are served from Amazon Cloudfront content delivery network, to increase speed for overseas visitors and reduce the server load.

The content management and blogging system is WordPress.  The design is based on the WordPress Twenty Fifteen theme. I did the adaptation myself. The main plugins I use on the site are WP Super Cache,  Tribulant Newsletters, and Xavin’s List Subpages. My online presentations (such as this presentation on complexity) are developed and published using Articulate Presenter.

Creative Commons LicenseThe content of this website is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License.  Some of the images are copyright and may not be reproduced without permission. The header images are credited in the footer of the page. Based on a work at

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  1. Hi Owen…your powerpoint presentations are terrific (content and technology)…is the software  easily available ?

    Many thanks for a very stimulating blog.

    Warm regards
    Simon Hunt 

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