De link
Our official builds are packaged before shipping, which entails stripping (among many other things). You can produce a packaged build by running "./mach package" in your source directory or "make package" in your object directory. The package will be in $objdir/dist. You don't really want to run a non-packaged build for anything useful anyway, since there are quite a few optimizations that happen at the packaging step.
A execução de mach package
reduziu significativamente o tamanho da compilação para cerca de 100 MB descompactados.