They spent several years in stealth mode but the initial release was llama.cpp.
Ollama v0.0.1 "Fast inference server written in Go, powered by llama.cpp" https://github.com/ollama/ollama/tree/v0.0.1
Ollama v0.0.1 "Fast inference server written in Go, powered by llama.cpp" https://github.com/ollama/ollama/tree/v0.0.1
doing what?
trying to build themselves what llama.cpp ended up doing for them?