Through trial and error, I discovered that one of the images we use in our services does not come pre-packed with which. While this is a minor inconvenience to change, it took me the better part of a day to realise, that the launch script fails because of that.

Since which is essential for the launch script to function, I wish to ask you to include an error message when which is not available.

Could be as simple as

if ! command -v which &> /dev/null
then
    echo "'which' could not be found"
    exit
fi

Launch script

https://github.com/xerial/sbt-pack/blob/master/src/main/twirl/xerial/sbt/pack/launch.scala.txt