An open-source project providing a suite of services for interacting with textual collections. While as a whole it provides an integrated reading environment, its individual services are designed to be modular and can be grouped into three different classes:

Linguistic support includes native support for Greek, Latin and Arabic; a contextualized reading environment where passages in a source text are accompanied by secondary resources such as translations and commentaries, with linguistic support, and; a suite of search tools to find what they are looking for, in any of the languages supported.