Chaki and his parents spent five years secretly living in the home of a Christian family in Athens before they could safely relocate to Israel with his younger brother.

This exhibit featured a wall filled with dark unframed portraits of Holocaust victims each bearing a number in the top left corner, and a large pile of burned books on the floor.

Following compulsory army service, he moved to Paris to complete his education at the Ecole Nationale Supérieure des Beaux-Arts while working for artist Yaacov Agam.

In 1987 the Congregation Shaar Hashomayim commissioned Chaki to design a large tapestry in honour of the synagogue's 145th anniversary,[9] in 1988 he painted "The Four Seasons" that is hanging at Place Ville-Marie[10] for the Royal Bank of Canada, in 2000 Chaki designed the stained glass windows[11] for the Adath Israel Congregation of Montreal, and in 2001 Salvatore Guerrera commissioned another work in stained glass[12] for Concordia University.

In 2017, he was featured on Federation CJA's website celebrating the Jews who played a major role in Quebec history, culture, and society.