Latest version of electron-packager-squirrel-windows cannot handle big installer with size more than 600Mb approximately. This forces us to use alternative approach for bundled installer that includes:

• CDK;
• SSH/rsync
• openjdk8
• JBDS
  To create bundled installer, build should download all required binaries and put them along with installer exe file with with the same name that installer uses in online version. For example CDK binaries would go to cdk.zip, JBDS installer to jbds.jar and so on. Names are configured in browser/model/*.js files for every downloaded binary.

Then 7zip extra package should be downloaded and used t produce self extracting archive from generated electron installer (gulp generate) and downloaded binaries.