[PeterStuer]

"It literally costs nothing to become a competitor"

but

"The new strategy will address the economic and political importance of open source, as a crucial contribution to a strategic framework for EU technological sovereignty, competitiveness and cybersecurity." (as per the call document)

This means OSS, but with an ecosystem that does NOT rely on anything non-EU for development, maintenance and distribution. This brings the price from "literally costs nothing" to hundreds of millions Euro.