The Śivasaṃhitā is a medieval text of Haṭhayoga. So far I have worked on its first chapter, using only a few witnesses.
I have worked on the Haravijaya for a number of years, and am currently converting my materials to TEI.
I am have more recently started work on the Kapphiṇābhyudaya and its commentaries.
This site runs on Charles Li's Upama software.