4 ms·Headless (no GUI) Smalltalk apps have been used commercially for decades.by igouy 8y agoHeadless (no GUI) Smalltalk apps have been used commercially for decades.goatlover 8y agoBut were the developed with the GUI and then deployed as a headless app?igouy 8y agoAnd were the developed with the GUI and then deployed as a headless app.