Both Electron and Cucumber.js need to be installed, they are peer dependencies. This gives you the option to choose the version you want to use:
npm install --save-dev electron @cucumber/cucumber @cucumber/electron
Cucumber-electron is a wrapper around Cucumber.js, supporting the same features and command-line options. You should be able to use it on your project without any changes.
Run cucumber-electron like it was Cucumber.js, for example:
npx cucumber-electron ./features/your.feature:123
-i) command line switch shows a browser window with chrome dev tools and keeps
the window open after all features have finished running.
The interactive debugger will halt execution on any
debugger statements, or breakpoints you have set in chrome dev tools.