nordisk/holger

.nornir/assets/holger-tiers.svg

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  <text x="30" y="28" font-weight="700" font-size="16">Holger — one engine, three build variants (crate boundary, not #[cfg])</text>

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  <text x="150" y="86" text-anchor="middle" font-weight="600">embedded  (library)</text>
  <text x="150" y="106" text-anchor="middle" fill="#555" font-size="12">no process — linked in-process</text>
  <text x="150" y="124" text-anchor="middle" fill="#555" font-size="12">by a host (nornir embed-holger)</text>
  <text x="150" y="142" text-anchor="middle" fill="#2b5fb3" font-size="12">✅ built · direct Rust, no socket</text>
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  <text x="430" y="86" text-anchor="middle" font-weight="600">mini  (static-holger)</text>
  <text x="430" y="106" text-anchor="middle" fill="#555" font-size="12">stripped, read-only, zero egress</text>
  <text x="430" y="124" text-anchor="middle" fill="#555" font-size="12">airgap / red-zone SBC</text>
  <text x="430" y="142" text-anchor="middle" fill="#c26a2b" font-size="12">🧭 design · crate-split refactor</text>
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  <text x="710" y="86" text-anchor="middle" font-weight="600">full  (holger-server)</text>
  <text x="710" y="106" text-anchor="middle" fill="#555" font-size="12">writable + proxy + remote + RON</text>
  <text x="710" y="124" text-anchor="middle" fill="#555" font-size="12">developer / build side default</text>
  <text x="710" y="142" text-anchor="middle" fill="#2b5fb3" font-size="12">✅ built · un-split binary</text>

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  <!-- shared serve engine -->
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  <text x="430" y="226" text-anchor="middle" font-weight="600">holger-server-lib — wire_holger() · FastRoutes O(1) dispatch · gRPC + native-HTTP doors</text>
  <text x="430" y="250" text-anchor="middle" fill="#555" font-size="12">the serve engine never names a concrete backend — it dispatches through Arc&lt;dyn RepositoryBackendTrait&gt;</text>

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  <text x="220" y="322" text-anchor="middle" font-weight="600">read-only znippy backends (13 ecosystems)</text>
  <text x="220" y="342" text-anchor="middle" fill="#555" font-size="12">maven·python·rust·npm·nuget·go·gem·deb·rpm·helm·docker·conda·composer·package</text>

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  <text x="640" y="322" text-anchor="middle" font-weight="600">writable + egress (full only)</text>
  <text x="640" y="342" text-anchor="middle" fill="#555" font-size="12">file-rust · file-oci · ProxyBackend · RemoteUpstream (Nexus/Artifactory)</text>

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  <text x="430" y="404" text-anchor="middle" font-weight="600" font-size="13">traits/ — RepositoryBackendTrait · ConnectorTrait · HolgerObject · ArtifactFormat (shared by all variants)</text>
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