Adding features to languages by anyone but the language designer doesn't work. It's unsupported, it affects too many other parts of the stack and leads to incre

Adding features to languages by anyone but the language designer doesn't work. It's unsupported, it affects too many other parts of the stack and leads to incredibly hard to spot bugs. You, or any project, can't do this. Also: doing this means as soon as you start using predictable finalisation to close DB connections, or anything, your code stops being C# code. It can no longer be used except in a highly nontrivial environment. It depends, in an undeclared manner, on a nonstandard runtime. So for open source code, or anything you're hoping to reuse: please don't do this. If you want this, switch to C++, Swift or Rust, or some other language that has it built in.