Hans De Graaff
Co-owner & CTO at Gentoo Linux
The Hague, South Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolHans De Graaff is a seasoned technology leader and co-owner/CTO with over two decades of experience turning novel communications technologies into market-ready services. Based in The Hague, he blends hands-on engineering (Unix, Perl, Ruby on Rails) with strategic innovation management, having led i-mode platform launches and cross-disciplinary teams at KPN. An active open-source contributor and Gentoo developer, he has practical experience internationalizing Rails-based publishing software and maintaining complex package ebuilds to ensure cross-architecture compatibility. His academic background in interactive systems research (PhD-level work at Delft) informs a user-centered approach to service design and early-stage product validation. Known for bridging strategic marketing, service development and implementation, he still maintains curiosity for low-level compatibility and localization details that often determine real-world adoption.
22 years of coding experience
16 years of employment as a software developer
dr, Computer Science, dr, Computer Science at Delft University of Technology
Github Skills (13)
ruby-rails10
portal10
localization10
rails10
build-system10
blog-engine10
package-management10
ebuild10
patch10
ruby10
linux9
html9
css8
Programming languages (14)
Github contributions (5)
gentoo/gentoo
Jan 2023 - Mar 2023
[MIRROR] Official Gentoo ebuild repository
Role in this project:
Back-end Developer
Back-end DeveloperContributions:59 reviews, 485 commits, 134 PRs in 2 months
Contributions summary:Hans's contributions primarily focus on maintaining and improving the Gentoo ebuild repository. They are responsible for adding patches, fixing issues related to package builds, and adapting existing ebuilds to support newer versions of software. Their work includes updating ruby-related packages, fixing build processes, and ensuring compatibility across different ruby versions and architectures, as well as managing and fixing general EAPI compliance. These contributions enhance the functionality and stability of the Gentoo package management system.
ebuildgentoorevit-apilinuxmulticore
publify/publify
Mar 2009 - Apr 2014
A self hosted Web publishing platform on Rails.
Role in this project:Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:6 commits in 5 years 2 months
Contributions summary:Hans primarily focused on localization and internationalization efforts within the Publify project. Their contributions included marking up strings for translation within templates and Ruby files, creating an initial Dutch language file, and providing partial updates to the Dutch translation, primarily for the admin menu. These changes enable multilingual support for the blog platform. Additionally, the user addressed a relative image path issue for proper rendering in different deployment scenarios.
ruby-on-railspublishingrailshostedblog-engine
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