New ask Hacker News story: Ask HN: What's the best way to add search to my website?

Ask HN: What's the best way to add search to my website?
2 by lucgagan | 7 comments on Hacker News.
I have a quite unique website https://ray.run/ I tried to create a website like the ones I remember browsing back in early 2000s. It has questions from the users, discord forum archive, dev tools, videos, etc. I want to find a way to add search for users. I see it on the other websites, and usually they use Algolia. However, my community is entirely free and their product is paid. What can I do instead?