If you want a mainframy COBOL there is Hercules to play with so that need is covered already: https://herculesmainframeemulator.weebly.com/add-and-compile-cobo

If you want a mainframy COBOL there is Hercules to play with so that need is covered already: https://herculesmainframeemulator.weebly.com/add-and-compile-cobolnbspnbsp.html https://herculesmainframeemulator.weebly.com/add-and-compile... (just the first hit on the query hercules mainframe cobol, there's plenty more where that came from)