A similar but more structured (though perhaps Hound supports a similar feature set) code searching tool is OpenGrok [1]. It's a bit more setup as it uses Apache Tomcat, but once it is setup it has an incredibly fast and useful code querying tool with really useful abilities to x-ref functions/structures, highlight uses of variables, and integrates git info as well. If you've ever used elixir.bootlin.com to go through the Linux source code, opengrok is effectively a more feature packed open source version of that. I highly recommend taking a look to anyone who spends a lot of time digging through code.
[1] https://oracle.github.io/opengrok/