To me it's really both. Do one first, notice it works sometimes and you're not sure whether you should publish it (at that point, don't :) -- ) and then look at

To me it's really both. Do one first, notice it works sometimes and you're not sure whether you should publish it (at that point, don't :) -- ) and then look at your own product through the lense of what you're learning. Eg. there are different kinds of UB and different problems it causes. There's a lot of entertaining literature and people in certain communities that can get you on the right track. One of them was certainly this one: https://devblogs.microsoft.com/oldnewthing/20140627-00/?p=633 https://devblogs.microsoft.com/oldnewthing/20140627-00/?p=63...