Sourcegraph CEO here. Yes, Kythe is a very ambitious project and we have a lot of respect for the team building it inside Google. source{d} (https://sourced.tech/) is another company doing awesome things in the code analysis space.

From our POV, the more people trying to accomplish these things, the better, because:

1. As developers and humans, we want these things to exist!

2. Our business and product is a code search and browsing tool, which benefits from better code intelligence/analysis. We don't sell language servers directly; we sell a tool that makes use of them.

(For interactive tools (editors, code search, and code browsers), which is what we're primarily targeting, LSP (https://microsoft.github.io/language-server-protocol/) is a better fit than Kythe.)