Java + Swing was doing cross-platform desktop apps long before Electron was a thing; my editor of choice for years (before moving to Sublime, then Atom and VS C

Java + Swing was doing cross-platform desktop apps long before Electron was a thing; my editor of choice for years (before moving to Sublime, then Atom and VS Code) was a Swing-based cross-platform editor called JEdit. And the JetBrains IDEs are still Java/Swing applications. (There were other options out there, too— for example, SWT’s the widget toolkit used by Eclipse which feels a bit more native on some platforms than Swing.)