Comment by serf

>There is absolutely no way that online tools can beat ag or rg for code searching, especially if you have an SSD. Exuberant ctags and GNU Global work for cross-referencing and support dozens of languages. And you have Magit and VC mode right there to track down source code history.

In my experience, you're right; but that opinion wouldn't make for a nice long-form advertisement for your software project.

Hook them with hinting "I have a solution better than emacs" first paragraph, add a happy tale about collaboration and friendship, and then pile on the advertisement.