Re: indexing files?

[Martin]

Rusi writes:

> Now I prefer recoll 
> [I forget the reasons for not liking tracker -- sorry!]

As I can see, there is only helm-recoll in the packages here.  but i
don't figure out how it works.  Do you have any config hints for me?

Doing M-x helm-recoll asks for a search query, but giving that nothing
happens (no buffer with results will be opened).

Any hints?

Thanks,
Martin