I am running it locally at home with tailscale for access outside of my home network. I added a tavily key for search and pageloads. There are various FE projects that can connect to Hermes, they also have a frontend, but it's not a "search" interface.
If you're looking for something more typical of search + AI, DDG is probably the next best. If you're looking for a search assistant that will find you a direct link to the leaked gta 6 footage that people are talking about or to summarise a comparison of 2 oss libs, Hermes is probably the one you're after.