What's Installed
What’s installed
Four pieces, installed in order, each one needed by the next:
| Piece | What it is | Why it’s here |
|---|---|---|
| llama.cpp | Software that runs AI models on your own hardware | This is the engine |
| A model | The AI itself — a multi-gigabyte file you choose from a menu | This is the brain |
| pi | A coding assistant that lives in your terminal | This is the part you talk to |
| pi-llama plugin | Connects pi to the model served by llama serve |
This is the wiring — no manual config needed |
On macOS, llama.cpp is installed via Homebrew (or the official direct installer); on Linux and Windows it uses the official direct installer. There is no separate Homebrew step anymore.
How they connect
flowchart TD
User@{ shape: manual-input, label: "User Input"}
Pi["`**pi** — the agent`"]
Server["`**llama-server** — runs the AI (part of llama.cpp)`"]
AIModel["`the **LLM model** — a file sitting on your disk`"]
User --> Pi
Pi -- "talks over the local API" --> Server
Server -- "serves" --> AIModel
Exact paths and files
llama.cpp
Homebrew (<brew prefix>/bin/llama-server, llama-cli) on macOS, or the official direct installer (~/.local/bin, ~/.local/share/llama.cpp) elsewhere.
Model weights
~/.cache/huggingface/hub/
pi-llama plugin
Managed by pi; no manual config file.
pi program
npm’s global prefix, or ~/.local.
Private Node.js
~/.local/share/pi-node/ (only if no suitable Node).
Shell profile
One appended export PATH=... line (only after asking you).
Not touched
System files, login items, launch agents, browser data, SSH keys, credentials. Nothing runs at startup. Nothing phones home.
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