[anneal][v2] Stabilize Nix omnibus archive builds#3444
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This was referenced Jun 7, 2026
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Teach the Nix archive builder to construct all supported platform archives from platform-specific upstream artifacts, unpack Mathlib cache archives using a native leantar, and seed vendored Lake path packages from the unpacked cache layout. Run the archive verification build in Lake's old mtime mode with deterministic source/config mtimes so the prebuilt cache artifacts are replayed instead of invalidated and rebuilt in the Nix sandbox. gherrit-pr-id: Gvs2nuhwbbh5phbtjrqaw4uc7odrdp7ce
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Teach the Nix archive builder to construct all supported platform archives from platform-specific upstream artifacts, unpack Mathlib cache archives using a native leantar, and seed vendored Lake path packages from the unpacked cache layout.
Run the archive verification build in Lake's old mtime mode with deterministic source/config mtimes so the prebuilt cache artifacts are replayed instead of invalidated and rebuilt in the Nix sandbox.
Latest Update: v2 — Compare vs v1
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git fetch origin refs/heads/Gvs2nuhwbbh5phbtjrqaw4uc7odrdp7ce && git checkout -b pr-Gvs2nuhwbbh5phbtjrqaw4uc7odrdp7ce FETCH_HEADCheckout
git fetch origin refs/heads/Gvs2nuhwbbh5phbtjrqaw4uc7odrdp7ce && git checkout FETCH_HEADCherry Pick
git fetch origin refs/heads/Gvs2nuhwbbh5phbtjrqaw4uc7odrdp7ce && git cherry-pick FETCH_HEADPull
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