If you look at SALT lending, and NEXO overdrafts, these are models Nu could adopt with some tweaks to enable lending with Nu.
It would support the peg, as NBT repayments would be required even during dips in demand, it would boost NSR demand, especially where NSR is beneficial as collateral for NBT loans, and it’d generate decent revenue, as it costs very little to issue NBT, but interest rates could be 10% per year or more.
Each NBT loan could be fully backed by collateral, e.g. with a target of 150%, that is liquidated at 110%, so there would never be a situation where there’s no backing for the NBT like Nu is currently facing.
It’d be a big investment to make, but would be a good direction for Nu (or similar) to go in.