Verified reference stack

Sensitive / Regulated — Air-Gapped Assistant — CPU 32 GB

Retained; Stackelier explicitly distinguishes offline mode from true air-gapping.

Application

Open WebUI

Open tool profile →
Runtime

llama.cpp

Open runtime profile →
Model

Qwen3-4B

Open model profile →
Hardware

CPU-only / 32 GB RAM

GOOD_BUT_SLOWER_THAN_GPU
Privacy

Air-gapped only when network isolation is enforced

License / terms

Apache-2.0

Evidence

Continue the decision

Put this reference stack in context

A reference configuration is most useful when you compare it with alternatives and then apply your own hard constraints.

Freshness rule: Material changes set this stack to REVALIDATION_REQUIRED.