Sure. Use the [Ren Bridge](https://bridge.renproject.io) to lock Bitcoin into renBTC tokens on, say, Polygon. Deposit it into [Curve's Ren pool on Polygon](https://polygon.curve.fi/ren) to get about 1% yield (currently) paid out in CRV. Withdraw renBTC and bridge them back when you're done.

There's a bunch of risks with this, the most prominent of which is WBTC token minted by BitGo, but see also the Curve interface hack. Saylor has said that he considers all risks like to be not worth it and therefore he just holds Bitcoin. That said, Fedimint's risk dwarfs all of this risk IMO.

Interesting, so you are saying that there may already exist at least some mechanism (this Curve thing you speak of?) that mints could use to source some yield which then can be partially passed back to their users?

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Fedimint and a new era of "Free Banking"

I fully expect mints to invest in Curve and adjust their Curve position as necessary. I also expect them to not fully pass the yield to the users.

And why not? Lots of people use Tether that keeps money in treasuries but doesn't pass any yield to the users.