Capacitor for Android missing Java libs

I created this Capacitor plugin GitHub - phparch/capacitor-zebra-print-bt. I tried installing it with npm install capacitor-zebra-print-bt. However after install it seems to be missing the node_modules/capacitor-zebra-print-bt/android/libs/ZSDK_ANDROID_API.jar file even though it exists on the repo. I’ve searched for issues on NPM, Ionic, and Capacitor but haven’t found what I could be missing. If I install this plugin locally using npm install ../capacitor-zebra-print-bt it works as expected. Can anyone help enlighten me on if I’m missing a step or if there is a bug causing this in NPM? TIA.