| # Backend Installation | |
| ## Ollama | |
| Ollama is the default backend installed by the platform builders. | |
| ```text | |
| backends/ollama/windows/ollama.exe | |
| backends/ollama/macos/ollama | |
| backends/ollama/linux/ollama | |
| models/ollama/ | |
| ``` | |
| Launchers set `OLLAMA_MODELS` so models remain inside the JackAILocal target. | |
| ## llama.cpp | |
| The Rust runtime can call a reachable OpenAI-compatible `llama.cpp` server at `LLAMA_CPP_URL`. This is an optional local chat fallback and is not required by the standard builder payload. | |
| ## Voice | |
| ```text | |
| backends/whisper.cpp/<platform>/whisper-cli | |
| backends/piper/<platform>/piper | |
| models/whisper/ggml-base.bin | |
| models/piper/en_US-libritts_r-medium.onnx | |
| ``` | |
| `windows/Install-Voice.ps1` and `unix/Install-Voice.sh` download verified official assets. Linux and macOS build whisper.cpp from the pinned source tag before installing the model assets. | |