We've been using it with friends and family semi-successfully (hashbangs work for edge cases we're still working on).
It's really difficult to get bigger indexes other than Mojeek and Marginalia to want to work with us and improve the results further, so that's something I've been researching more, lately. EUSP (the new Ecosia/Qwant-effort-related index) has finally replied to me last week, but I'm still waiting on an API key.
If you're interested in trying it for a few days and are a human, reach out with your account number and I'll give you a couple of weeks for free. We're pushing improvements daily.
[2] https://kagi.com
P. S. It's weird to see this duplicate (posted less than a week ago in https://news.ycombinator.com/item?id=46874385), but this post has a lot more comments!
I have always hated how we deal with feature flags; often times as a dev I implement it, but then business decides how the flags are used, which comes back to us having to set them. I want to make this something that can be used by both easily, and priced fairly - looking at how much others charge for a feature flag SaaS is insane.
Currently I'm in heavy testing by myself, as I am quite worried about issues (that's just my personality), but yeah. It started as a normal side project for me to train a bit, then I added a bit of agentic coding to it to also learn it, and now it's here.