Here links to the specific funds as mentioned in the post above:
#NGItaler (electronic payment related):
@NGI_Taler
https://nlnet.nl/taler/ #NGImobifree (Android related):
https://nlnet.nl/mobifree/
#NGIzerocommonsfund (very broad, I guess all #FOSS fits here):
@NGICommons
https://nlnet.nl/commonsfund/
Actually there are even more funds/themes, here a list of all currently open for proposals:
https://nlnet.nl/news/2024/20240401-call.html