El Salvador has an extradition agreement with the US, so no, he wouldn’t provide safe harbor. https://www.oas.org/ext/Portals/33/Files/TreatiesB/USA_biltreat_elsal_eng_1.pdf
Will Bukele provide safe harbour for the Bitcoin devs working on privacy solutions?
Or is he LARPing? 
Discussion
I’m aware of their extradition treaty: nostr:note1lxugzdqdnn7s3xaywhhdste3dnggwtx2u7tm75nmn7sce6f7xvjqe05mnl
They were also beholden to the IMF prior to Bukele’s ascension and have basically got that debt sorted now so things can change.