Guru Granth Sahib Library, in collaboration with the Nanakshahi Trust, began digitizing centuries-old copies and manuscripts of the Guru Granth Sahib and other Sikh sacred texts. In 2004 the Sikher project was launched by Jasdeep Singh Khalsa to develop an 'open source' approach to Gurbani translations and app development. In 2013 the Khalis Foundation a Californian based non-profit relaunched Sikhi to the Max based on the open source philosophy promoted by the Sikher project. Guru Granth Sahib Sri Guru Granth Sahib (Punjabi: ਗੁਰੂ ਗ੍ਰੰਥ ਸਾਹਿਬ/ ) was compiled by the tenth religious Guru of Sikhism, regarded by Sikhs as the final, sovereign, and
Adi Shankara ("Bhāṣya"), original philosophical expositions ("Prakaraṇa grantha") and poetry ("Stotra"). However most of these are not authentic works of Adi Shankara and are likely to be works of his admirers or scholars whose name was also Shankaracharya. Piantelli has published a complete list of works attributed to Adi Sankara, along with issues of authenticity for most. Adi Shankara is most known for his systematic reviews and commentaries ("Bhasyas") on ancient Indian texts. Shankara's masterpiece of commentary is the "Brahmasutrabhasya" (literally, commentary on Brahma Sutra), a fundamental text of the Vedanta school of Hinduism. His commentaries on ten Mukhya (principal) Upanishads are