This article is concerned with the technical and methodological challenges encountered during a project to comprehensively document the inscriptions of the largest ancient Egyptian temple. This project aims to produce a complete inventory, and editing of, primary textual sources written in several varieties of the ancient Egyptian language and script: hieroglyphs, hieratic and demotic. The issues discussed concern the implementation of the digital tool, the need for a network of collaborators in order to process the large volume of documentation, and the need to identify digital solutions to preserve textual data from the Egyptian site. Finally, the lexicographic aspect of the project is discussed.