Productivity software like LibreOffice has long been sustained by the commercial activities of community members as well as the contributions of countless volunteers. That's also driven standards engagement, like the work around ODF. But the cloud is slowly killing the desktop support business, and volunteers aren't enough for complex, mature software. TDF has been innovating to sustain LibreOffice and ODF. This talk will describe the COSM and TDC projects which are sustaining LibreOffice, and ask whether similar approaches might sustain other open source desktop software.