You used to be able to do this, I tried once, with Delphi and Kylix (the linux version of Delphi), the only problem was that the Delphi ecosystem encouraged thi

You used to be able to do this, I tried once, with Delphi and Kylix (the linux version of Delphi), the only problem was that the Delphi ecosystem encouraged third-party widget/controls, many of which were tied to specific versions of Delphi and only ran on Windows.