[_xnmw]

I want someone to use one of these libraries to build a local-desktop-offline personal search engine which only crawls sources I select, including my personal emails and browsing history.

[syspec]

Finder on OSX meets that criteria

[jdc]

Now if only it would index the actual web pages of the browser history.

[SanchoPanda]

Recoll does this.

[ternaryoperator]

That looks like a really cool tool. Thanks for mentioning it!

[rubyn00bie]

Already on it :)