Implementation of the Response of Sven to Andreas http://forum.world.st/How-to-deploy-headless-app-without-changes-and-source-files-td4949556.html

disableChangesAndSources.st

ChangesLog subclass: 'NoChangesLog'.
 "and installed that as its DefaultInstance (as accessed by #default), with an #install class side message."
NoChangesLog class compile:'default
	^DefaultInstance ifNil: [ 
		DefaultInstance := self new.
		self registerInterestToSystemAnnouncement.
		DefaultInstance]'.

NoChangesLog  compile:'logChange:aStringOrText'.

NoChangesLog  compile:'logSnapshot:boolean andQuit:anotheBoolean'.

  NoChangesLog class compile:'install 
DefaultInstance := self new'.

NoChangesLog install.

PharoFilesOpener subclass: 'NoPharoFilesOpener'.
NoPharoFilesOpener  compile:'sourcesFileOrNil ^nil'.
NoPharoFilesOpener  compile:'changesFileOrNil ^nil'.
NoPharoFilesOpener class compile:'install Default:=self new'.
NoPharoFilesOpener install.
Smalltalk snapshot:true andQuit:true

It works!!!!!!!!!!!!
The minimal image just doesn't need nor changes nor sources