So, because it currently "works", it should "safely" compile by adding many `any`s. (No Implicit Any, and other strictness flags set to false.) Then it's a mat

So, because it currently "works", it should "safely" compile by adding many `any`s. (No Implicit Any, and other strictness flags set to false.) Then it's a matter of cleaning them up. But usually, at least in my experience, the problem is the libraries and their API, which used to be very much full of any in those dark times.