Apply for grants to fund Plone development

I'd like to fund development of the proposed PLIP to enhance timezone support in Plone as described in [DRAFT] PLIP #5629: Enhance timezone support in UI for `` based types · Issue #5629 · plone/volto · GitHub.

@niccokunzmann suggested that I apply through NLnet; Apply for funding. He was successful with receiving a grant for development of the Open Web Calendar Stack, including collective/icalendar. NLnet's mission aligns somewhat with Plone's open source spirit. Would anyone care to share their experience, knowledge, or advice for applying for a grant with NLnet?

I would also like to apply for a grant from the Python Software Foundation. I'd appreciate any feedback about that process as well.

Finally are there any other sources of funding or grants to consider?