There’s lots of stuff in the jd/curve-comparison branch, if you wind up trying this.
I used this a lot when working on WireGuard’s crypto library – https://git.zx2c4.com/WireGuard/tree/src/crypto/
I’d have probably tried to run it on dedicated hardware with minimal OS or runtime to prevent OS interference or disruption. You just letting it hang your interactive kernel for a while was a…. great idea. I don’t think I’d have ever thought of doing that.