It's not without challenges, is it? The IMF wants you to be poor and loyal to them for loans
Who knows that Bukele didn't do that? We only know what Nayib Bukele lets us know

Whatever the IMF concerns, Nayib Bukele has his own master plan & remains steadfast. Ignoring the pressure of the IMF Bukele has continued their daily Bitcoin purchases. Till now Nayib Bukele has been able to grab approx 6,111 BTC officially for his people. We will never know how much they actually stored unofficially

Since the IMF wants to intervene and is trying to force them to stop buying Bitcoin and stop mining activities in the public sector.
So it is time for Nayib Bukele to focus his future strategies on creating regulatory environment that encourages private sector involvement & responsible adoption.
IMF will keep putting pressure on El Salvador until the country agrees to reduce its involvement in Bitcoin if they keep asking for financialassistance. The country would have to seek other solutions to its economic problems so that it would not keep depending on loans from the IMF. Another option could be seeking financial assistance from other international lending organisations.
Creating a favourable environment for private organisations to invest in the Bitcoin sector is another option. Private companies with close ties with the government can invest in mining and other Bitcoin related businesses.