there's a host your own version thats available now https://fossilrepo.dev live server (demo) in fossilrepo.io which is a modern wrapper UI. There's also the standard https://fossil-scm.org/ which you can also host yourself on a $5/mo server on Hertzner or the like.
Funny timing — I've been working on a hosted Fossil service to scratch this exact itch. The integrated wiki+forum+tickets+code is killer for small teams, but most people who'd pick Fossil don't actually want to babysit a server. So we host it.
Two things I keep coming back to:
(1) The "opinionated / small-teams only" critique others have raised in this thread is real, and I think Fossil should own it instead of fighting it. The 5,000-engineer monorepo market is a solved problem (Git won). Fossil should own the 1-50 person bracket — where having issues, wiki, forum, and code in one self-contained, syncable SQLite file is a huge unfair advantage.
(2) AI agents are a brand-new reason to look at Fossil that didn't exist when Git won. Every repo is a queryable SQLite file. An agent reads tickets + wiki + code + history with one SELECT — not 47 GraphQL calls and a rate limit. RAG and MCP setups against the repo become trivial.
The core issue for me is, I don't want to trust someone else with my code, or run my stuff on their computers. I don't see serious enterprise organizations offloading something as critical to security outside their own network perimeter.
Vibe coding for the win... In all seriousness, this has been a constant decline as developers have focused away from performance and optimizing effective runtime.