Cryptocurrency is not permitted in Nepal. This route is fully legal all the same: Superteam Nepal holds a No Objection Certificate from the government for this effort.
The donations are received outside Nepal by Engage Nepal, opens in a new tab, a charity registered in the United States under section 501(c)(3). What arrives is converted into US dollars and wired through Cross River Bank to the Prime Minister Disaster Relief Fund, the Government of Nepal’s own account for this disaster.
Every step of that is on this page: each donation as it lands, the exchange statement and the wire receipt when they are published, and the fund’s own reporting after that.