Zipalign problem | Linux

[Morsmalleo]

So basically my problem is this.

On the README.md it says that there is a built in zipalign feature, however when I use uber-apk-signer on Linux to try and sign an apk, I can't sign an APK at all because because zipalign could not execute, if I run apt install zipalign however, it works, how do I utilise the built-in zipalign feature if it's possible???

Sorry I'm still very new to this repo, I used to use an older type of signer but this one is better.