What your machine needs before you pick a stack preset in /arth-setup.
This is the short hardware/platform reference — for the full walkthrough
(setup questions, task division, keys, feature switches), see the
Single-User Guide.
| Preset | RAM | GPU | Disk | Notes |
|---|---|---|---|---|
| Claude only (default) | 8 GB floor | not required | ~1 GB (toolkit) | all inference is remote |
| Claude + one cloud provider | 8 GB floor | not required | ~1 GB (toolkit) | same footprint — inference stays remote |
| Claude + one local runtime | 16 GB minimum, 32 GB recommended | Apple Silicon, or NVIDIA with 8–24 GB VRAM on Windows/Linux | +50 GB for model weights | the only preset with a real local footprint |
Running Arth Intelligence and/or arth-memory locally (Docker) adds +2–4 GB RAM on top of whichever preset you picked, and needs no GPU.
The headroom rule, in one line: a local model may claim at most
total RAM − 12 GB, and setup only ever offers models that actually fit —
see the Single-User Guide §2
for the full rule and how to check free RAM.
| Your RAM | Default model | Alternates |
|---|---|---|
| 16 GB | Qwen-Coder 7B (quantized) | — |
| 32 GB+ | Qwen3-Coder 30B-A3B (quantized) | Devstral, gpt-oss-20b |
Every recommendation is gated by the conformance probe before it’s wired into an execution lane — see the Single-User Guide §5.
| Platform | Support |
|---|---|
| macOS, Apple Silicon | native — every preset, every layer |
| Linux | native — every preset, every layer |
| macOS, Intel | cloud presets only — no local-runtime preset |
| Windows, via WSL2 | supported — Ollama/Docker inside the distro (or Ollama Windows-native, reached over localhost) |
| Windows, native (no WSL2) | out of scope |