ANDROID_HOME setup but not found by expo

Hi! using SDK 46, on my LinuxMint 21.0 box, fresh install, I have setup ANDROID_HOME env variables but despite restarts and double check, every time I start expo with npx expo start I get a warning saying that the ANDROID_HOME var is undefined:

Logs for your project will appear below. Press Ctrl+C to exit.
› Opening on Android…
Failed to resolve the Android SDK path. Default install location not found: /home/martinb/Android/sdk. Use ANDROID_HOME to set the Android SDK location.

My PATH definitions (in .bashrc)

export ANDROID_HOME=$HOME/Android/Sdk
export PATH=$PATH:$ANDROID_HOME/emulator
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools
export ANDROID_SDK_ROOT=$ANDROID_HOME

martinb@internet:~$ echo $ANDROID_HOME
/home/martinb/Android/Sdk

martinb@internet:~$ echo $ANDROID_SDK_ROOT
/home/martinb/Android/Sdk

martinb@internet:~$ echo $PATH
…:/home/martinb/Android/Sdk/platform-tools:/home/martinb/Android/Sdk/emulator:/home/martinb/Android/Sdk/tools:/home/martinb/Android/Sdk/tools/bin:/home/martinb/Android/Sdk/platform-tools

Thanks in advise!