# Binary prerequisites

StellaOps supports offline operation by pinning binaries and packages in
local mirrors with deterministic manifests.

Layout
- local-nugets/ for NuGet packages and cache.
- vendor/ for pinned third-party binaries.
- offline/feeds/ for air-gap bundles.

Rules
- Update manifest files when adding binaries.
- Prefer source builds when possible.
- Enforce offline builds with local sources first.

Related references
- docs/ops/binary-prereqs.md