On July 19, 2017, I had the pleasure of participating in the ASAPbio's Evolving Preprint Ecosystem meeting. The forum focused on the rapidly growing preprints ecosystem, including new players such as ChemRxiv, PsyArxiv, EngArXiv, SocArXiv, etc. My brief presentation was based on the lessons learned through running arXiv and our intention to co-host a meeting with bioRxiv to promote best practices and principles to ensure the development of sustainable preprints. In this context, sustainability entails maintaining the ecological balance of scientific communication, securing resources needed to protect and enhance the value of preprint services based on the needs of the user community, and meeting the needs of the present preprint users without compromising the ability of future opportunities.