Sourcegraph CEO here. I see the doc mentions Sourcegraph for code search (cool!). Something like ripgrep is indeed better for your case, a single person who just needs to search code in local directories on their own machine. I made a PR for our docs at https://github.com/sourcegraph/sourcegraph/pull/8075 that should clarify this.

Sourcegraph is a web-based code search tool that automatically syncs and indexes many repositories from your organization's code host(s). It's intended for every developer at an organization to use for searching across all of the organization's code (and for navigating/cross-referencing with code intelligence). It's self hosted and usually there is 1 Sourcegraph instance per organization. If you love local+personal code search, I bet you and your teammates would love organization-wide code search, so give Sourcegraph a try (https://docs.sourcegraph.com/#quickstart). :)