llama.cpp, kobold.cpp, oobabooga, llmstudio, etc. There are dozens at this point.
And while many chalk the attachment to ollama up to a "skill issue", that's just venting frustration that all something has to do to win the popularity contest is to repackage and market it as an "app".
I prefer first-party tools, I'm comfortable managing a build environment and calling models using pytorch, and ollama doesn't really cover my use cases, so I'm not it's audience. I still recommend it to people who might want the training wheels while they figure out how not-scary local inference actually is.