Ken M. Penner announced on the Ibiblio Biblical Greek Forum that:
A first stab at producing OCR-generated Greek and Latin for the complete Patrologia Graeca (PG) is now available on GitHub at https://github.com/OGL-PatrologiaGraecaDev
This resource provide access to texts written by the so called church fathers — persons living mainly in the 1st – 6th centuries and who witnessed the developments around the early Christian eklesia. Its 161 volumes include in addition many authors up to the 15th century.