I think that’s still possible, but debugging this way can in general be much more difficult. The releases are built in release mode where the compiler can optimized the code in a way where what you see in the source code doesn’t quite reflect what is being run. As such, you might find that you won’t be able to set a breakpoint on certain lines, methods can get inlined, etc.
Nice find @drwtsn32! Looks like with my setup I’m getting a ed25519 host key.