Hampton Lintorn-Catlin

Hampton Lintorn-Catlin (né Catlin; born 1982 ) is an American computer programmer, programming language inventor, gay rights advocate, and author, best known as the creator of the Sass and Haml markup languages. Hampton was a Vice President of Engineering at Rent the Runway, and has previously held similar roles at Moovweb, Thriveworks, and at the Wikimedia Foundation.

Haml
He created a markup language called Haml which he intended to be a radically different design for inline page templating systems like eRuby in Ruby. Since its initial release in 2006, Haml has been ported to several other languages and has been the design inspiration for other languages like Slim. It's the second most popular templating language for the Ruby on Rails framework.

Sass
In 2007, Lintorn-Catlin created a style sheet language to expand on Cascading Style Sheets (CSS), used to describe presentation semantics of web pages. Catlin continued to work on Sass with co-designer Natalie Weizenbaum through 2008. Sass is now bundled as part of Rails.

In 2011, he co-wrote with his husband the book Pragmatic Guide to Sass, published through The Pragmatic Bookshelf.

Wikipedia Mobile
Lintorn-Catlin wrote several early applications for iOS and other mobile platforms, including Dictionary!, a popular dictionary application, and a Wikipedia browsing client which was later purchased by the Wikimedia Foundation. He was subsequently hired by Wikimedia and given the role as mobile development lead for the Foundation, launching the official mobile website in June 2009. The backend for the site was developed using Ruby and the Merb framework.

Personal life
Catlin was born on September 2, 1982 in Jacksonville, Florida and currently resides in New York with his husband and collaborator, Michael Lintorn-Catlin.

The couple made headlines in late March, 2014, for removing a simple puzzle game they had built together from the Mozilla Marketplace after Brendan Eich was appointed CEO of Mozilla. They called for a boycott of Mozilla, pledging "We will continue our boycott until Brendan Eich is completely removed from any day to day activities at Mozilla...." Eich had previously been the center of controversy surrounding his support for Proposition 8, a ballot initiative that banned marriage equality in California, which was re-ignited by his promotion to CEO. After a large public outcry and several Mozilla Foundation employees publicly calling for him to step down, Eich voluntarily stepped down only a week after taking his new position. When asked if he'd donate again, Eich responded "I don't want to answer hypotheticals." In a follow-up blog post, Catlin explained meeting Eich to find middle ground and expressing dismay at the response, calling the outcome a "sad victory".