figure out legal organization for receiving donations/grants
In the past grants, the legal organization that received the money was different than any legal F-Droid organization (e.g F-Droid Limited). I think it makes sense keeping F-Droid Limited as the donation recipient for the core infrastructure, as far as I know, that seems to be a steady trickle which pays those bills. For running project-based grants like NLnet, MA7, Bazaar2, etc. I think the Debian model could work well for us: basically having multiple, semi-official legal entities run by some group of core contributors.
To that end, I think we could get some kind of EU legal entity through this organization, which is related to NLnet: https://commonsconservancy.org @Bubu knows more about it.