Having played with Dafny only in a university course, I really enjoyed it as a way of implementing algorithms and being certain they work with much less cruft than unit tests.
I haven't gone looking but verifier tools compatible with languages people already use (typescript/rust/go/whatever is the flavour of the month) feel like the way to go
I haven't gone looking but verifier tools compatible with languages people already use (typescript/rust/go/whatever is the flavour of the month) feel like the way to go