Using SCRCPY and React-Native at the same time on a linux machine

I am trying to use scrcpy for mirroring the mobile screen on my Linux machine, to develop a react-native app. But adb does not allow running scrcpy and react-native instance at the same time. It terminates one instance and starts the other one. The documentation for scrcpy states to add an env variable ADB=/path/to/adb scrcpy.I'm not very familiar with Linux environments. Could someone help me with this please? I tried looking this up on the internet, but most of them explain how to do this on a windows environment.