dcs VS opengrok

What is a good open-source system for code search if I want to plug 100 or so git repos into it and have it available over the web? GH search is not desirable because it would search too broadly and would not cover repos on Gitlab etc.

I looked at the Debian code search [1] in the past, but for some reason thought it required a bit too much effort and didn't complete my investigation of it. Though [2] looks pretty approachable.

Sourcegraph mentioned Zoekt [3], but I am not sure how usable it is. If it was pretty good, why did Sourcegraph OSS exist?

Finally, from all the discussion how Sourcegraph OSS was very behind in the past few years, I guess there is no serious plan to fork it?

[1]: https://github.com/Debian/dcs

[2]: https://github.com/Debian/dcs/blob/main/howto/building.md

[3]: https://github.com/sourcegraph/zoekt

[4] is not really a usable 'product'. Livegrep (https://github.com/livegrep/livegrep) was inspired by it and is very usable.

[3] used to be a Google open source project as well, but it fell out of maintenance, and Sourcegraph took it over. It powers most of the basic regex/literal search in Sourcegraph.

Mozilla's code is searchable in Searchfox (https://searchfox.org/) which uses the indexer from Livegrep, combined with their own Git indexer and language-specific cross reference databases.

OpenGrok (https://github.com/oracle/opengrok) is also rather well known, but I have found it to have a slightly worse UI than alternatives.

My job uses https://oracle.github.io/opengrok/ and I'm generally happy with it. It has some problems with special character searches at times but generally does what I want. It's certainly better than code search in our on-prem github instance.

I used it a long time ago, but I see this is still around: https://oracle.github.io/opengrok/

You've never come across https://github.com/oracle/opengrok for example?

[2] https://about.sourcegraph.com/

[3] https://oracle.github.io/opengrok/

[4] https://github.com/hound-search/hound