I'm kind of surprised nobody has done that yet actually. I guess Opus 5.5 has only been out for a very short time...
It wouldn't be for free though, would it? People need to build and maintain it (and there's LLM cost associated with it too).
Let's say you are a 5 person start-up. It makes much more sense to pay $15/user/month for services like Jira, Slack, Email etc. then to build and maintain everything yourself.
For super large companies, it might make financial sense to build some of the tools in-house. But then again, that probably already made sense for LLMs were a thing. But there is more to it than just the pure financials (i.e. salary).
Maybe a 5 person company wouldn't do it. A 100 person one though? No brainer. And it only takes one to open source their solution.
Slop curators and tech support shoulders to cry on. Could be lucrative.