This is a template I used and created for building my first ever overwolf application for a game called New World.
Thats then also the game this template is set up for, Read the next parts to make sure it works for your game.
Change global.ts & manifest.json with the game specific id code.
you can find the numbers representing your game on overwolf's documentation, there is a nice searchbar!
# Development & Release
$ npm run dev # JIT Webpack (build/)
$ npm run serve # Live Server (localhost)
$ npm run build # Webpack (build/)
$ npm run package # Package (packages/*.opk)
# CLI Debug Server @ localhost:8080/
$ npm run debug
# HTTP(S) Backend Server @ locahost:80/api
$ npm run api