The fifth edition of the Swiss Open Cultural Data Hackathon took place on 6-8 September 2019 at the brand new cultural center Les Arsenaux in Sion. This time, OpenGLAM CH and worked together to combine the OpenGLAM hackathon format with the Museomix makeathon approach. The event was hosted by the Médiathèque Valais, the State Archives and the Cantonal Museums. Further partners included infoclio and the members of the Friends of OpenGLAM Network.