The project began in 2004 with sponsorship of the University of Vigo for Galician language support in education software and was officially presented in April 2005 with Richard Stallman, founder of the GNU Project, as a special guest. Source code for the full Trisquel installation is also available in a downloadable 3-gigabyte DVD image. The full installation includes 51 languages ( Albanian, Arabic, Aranese, Asturian, Basque, Bulgarian, Catalan, Central Khmer, Simplified Chinese, Traditional Chinese, Croatian, Czech, Danish, Dutch, English, Esperanto, Estonian, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Latvian, Lithuanian, Low German, Norwegian Bokmål, Norwegian Nynorsk, Occitan, Punjabi, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Tamil, Thai, Turkish, Valencian and Vietnamese) pre-installed in a downloadable 1.2-gigabyte DVD image. NetInstall consists of a 25MB CD iso image with just the minimal amount of software to start the installation via a text based network installer and fetch the remaining packages over the Internet.

Sugar replaces the standard MATE desktop environment available with Trisquel. Sugar is a free and open source desktop environment designed with the goal of being used by children for interactive learning. Triskel is another alternative to mainline Trisquel using the KDE graphical interface, available as a 2.0 GB ISO DVD live image.

The LXDE desktop only includes English and Spanish localizations, and can install from a 1.2 GB live DVD image. It uses the low-resource environment LXDE and lightweight GTK+ and X Window System alternatives to GNOME and Qt- KDE applications.

Trisquel Mini is an alternative to mainline Trisquel, designed to run well on netbooks and older hardware. Other translations can be downloaded if an internet connection is present during installation. The standard Trisquel distribution includes the MATE desktop environment and graphical user interface (GUI), and English, Spanish and 48 other localizations, 50 in total, on a 2.6 GB live DVD image.

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