There are several things not accurately documented/outdated:

• -v2 is used the examples but does not work
• # duckduckgo not supported although it is in the list of supported search engines
• To get a list of all search engines --config is suggested but that just fails

By the next's document, this causes all pages to be executed on the server -- disabling Automatic Static Optimization.

It probably returns the 4 fake "High Speed Results" (that actually are ads) displayed on the website...

I think they should be filtered out.

It will be easier to contributers and new users to start and run application in non windows environment.
Bash scripts should be near them cmd files.
Example:
https://github.com/TinkoffCreditSystems/ISA/blob/master/scripts/start.cmd

If the DB supports it, with this option -no-save=true we will not save the actual document in the database and only index it.

• itemMaxWords
• itemMinPadding