Abstract: SciPost is a publication portal aiming to reform current publishing practises in the sciences. It is entirely not-for-profit, offers a novel peer-witnessed refereeing mechanism, provides openly-accessible publications (CC-BY license with copyright to authors), does not charge subscription or publication fees (two-way open access: free for readers and authors) and has all its activities under the direct control of professional scientists (in particular, all editorial decisions are taken communally by its Editorial College). This talk will introduce the initiative, its motivations, implementation and longer-term objectives.