Is that really necessary? Venezuela recently held an election in which the results were simply ignored by the leader in power. Very few US citizens will find this particularly odious.
The ESF is self financing. And yeah, sure, it is artificially propping up the peso, the same way we propped up the Mexican peso, the Thai bhat, and others once upon a time.
Did we bail them out before? From what I can tell, we opened up a currency swap using a Treasury fund (not funded by tax dollars) specifically devoted to currency stabilization.
Nope! This feature is completely agnostic to the Nix language, dealing only with how/when files are copied to the Nix store. More of an under-the-hood implementation detail than anything, although one with important consequences.
Using flakes or not, any store path evaluation involving Nixpkgs is going to be computationally intensive, potentially too intensive for a memory-constrained device.