oss-funds https://digital-strategy.ec.europa.eu/en/policies/next-generation-internet-initiative Sovereign Tech Fund https://sovereigntechfund.de/en https://www.grants.gov/web/grants/view-opportunity.html?oppId=346240 OTF https://www.opentech.fund/news/open-technology-fund-announces-free-and-open-source-software-sustainability-fund/