Great to see that you're donating, and that the kids had a great time!

I'm curious as to why you chose to donate here in particular (my understanding is that it was rooted in the ease of a wage sacrifice, so limited friction) - it was not necessarily a choice that would conventionally fall in line with EA frameworks, given not optimising for suffering minimised, lives saved, positive utility delivered, or another metric of choosing based on one's worldview. 

Of course, not every donation need optimise for those - there is a place for fuzzy altruism in personal satisfaction and sustainability amongst other reasons; looking forward to hearing what the rationale was here.

Full fatwa here (Malay): https://ciri.islam.gov.my/view/fatwa_cetak.php?id=16914

Cultivated meat can be declared halal as long as the cell culture comes from a halal animal that has been slaughtered according to Islamic law, and as long as the media is halal (so not derived from blood or other haram substances)

Note: I do not speak Malay, nor am I Muslim, so further confirmation from someone who fits either of those demographics would be beneficial

Incredibly excited to see what's to come!