You can read how to setup the idOS Feature Extractor in the Setup Manual
You can read how to operate the idOS Feature Extractor in the Operation Manual
To generate the internal documentation, run:
./vendor/bin/phploc --log-xml=build/phploc.xml cli/
./vendor/bin/phpmd cli/ xml cleancode,codesize,controversial,design,naming,unusedcode --reportfile build/pmd.xml
./vendor/bin/phpcs --standard=VeriduRuleset.xml --report=xml --report-file=build/phpcs.xml cli/
./vendor/bin/phpdox --file phpdox.xml.dist
The files will be stored at docs/.