A software language from the 1970s, that is kept alive by government contracts and legacy systems that cannot be replaced, because they are incompatible with modern data formats. The server software has a web extension, which makes it as pleasant to use as classic ASP in the 1990s, just without all the good documentation and code examples...

9 out of 10 code completions from GitHub copilot are wrong in this language, ChatGPT is not better either. The official VS Code extension for this language complains about errors every time you try to use modern JavaScript language constructs. It breaks basic browser controls such as bookmarks or back buttons, because the session Id is submitted as part of the url. Clicking a bookmarked page will give you an error Message, but won't take you to a login prompt or even remember where you wanted to go...