Dev mode - Everything works as expected end to end
Release build -

• Build process works without error:
  Build steps:
  • Install dependencies: npm install
  • Run package script: npm run package
  • App is generated in out/ in the format supported by platform it is built on

• Running the generated app works fine:
  

• Err occurs, after selecting a JSON file for import, i.e. when sqlite3 is being required by Sequelize.
  Essentially, sqlite3 isn't being made available in the release build, since it is a native module, it needs some particular config changes in webpack so that it can be available in the release build too.