Why Swing instead of JavaFX?
Although, interestingly, while digging up that link I noticed the JediTermMain that for sure makes it plausibly executable so I dunno if OP's project is actually just "for funzies" or if there's otherwise something added https://github.com/JetBrains/jediterm/blob/4cef2840aed5ec1d6...
You're right, I'm not doing much except adding some build logic for creating executables really. I also added tabbing and light / dark mode. I guess we could also at least add more options that are readily available for the jediterm widget (https://github.com/JetBrains/jediterm/blob/4cef2840aed5ec1d6...)