title: What is the recommended way to set JVM options for the executables created with sbt-native-packager?
body: <p>Currently, I use <code>export JAVA_OPTS ...</code> on the command line, but there seem to be other possibilities, using the <code>build.sbt</code> or an external property file. </p>
  
  <p>I have found several relevant github issues <a href="https://github.com/sbt/sbt-native-packager/issues/98" rel="nofollow">here</a>, <a href="https://github.com/sbt/sbt-native-packager/issues/232" rel="nofollow">here</a> and <a href="https://github.com/sbt/sbt-native-packager/issues/48" rel="nofollow">here</a> but the many options are confusing. Is there a recommended approach?</p>