diff --git a/README.md b/README.md
index 02d4775..d5cc137 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,8 @@
-# CultMath
+# CultMath (archived)
+
+CultMath now lives in [`GameCult/CultLib`](https://github.com/GameCult/CultLib)
+under `packages/cultmath`. This repository preserves pre-monorepo history and
+release provenance; it is not the source or release authority.
 
 Clean-room math shaped for people who think in HLSL.
 
@@ -84,7 +88,7 @@ CultMath's Unity 2021.3 surface is the tracked precompiled package at
 tree and does not require a consumer `csc.rsp` workaround.
 
 ```json
-"org.gamecult.cultmath": "https://github.com/GameCult/CultMath.git?path=/unity/org.gamecult.cultmath"
+"org.gamecult.cultmath": "https://github.com/GameCult/CultLib.git?path=/packages/cultmath/unity/org.gamecult.cultmath#cultmath-unity-v0.1.2"
 ```
 
 The repository root is not a Unity package. Build the tracked package with
@@ -102,7 +106,7 @@ CultMath keeps portable DXC outside git under `.tools/`:
 .\tools\compile-hlsl-spirv.ps1 `
   -ShaderPath E:\Projects\Odin\crates\muninn-move-tracker\shaders\MoveSphereCandidate.comp.hlsl `
   -OutputPath E:\Projects\Odin\crates\muninn-move-tracker\artifacts\shader\MoveSphereCandidate.comp.spv `
-  -IncludePath E:\Projects\CultMath\shaders
+  -IncludePath E:\Projects\CultLib\packages\cultmath\shaders
 .\tools\compile-spirv-metal.ps1 `
   -SpirvPath E:\Projects\Odin\crates\muninn-move-tracker\artifacts\shader\MoveSphereCandidate.comp.spv `
   -OutputPath E:\Projects\Odin\crates\muninn-move-tracker\artifacts\shader\MoveSphereCandidate.comp.metal
diff --git a/src/CultMath/CultMath.csproj b/src/CultMath/CultMath.csproj
index 4e0027d..54dc54b 100644
--- a/src/CultMath/CultMath.csproj
+++ b/src/CultMath/CultMath.csproj
@@ -11,7 +11,7 @@
     <Version>0.1.2</Version>
     <Description>Clean-room C# math shaped for HLSL-style renderer code.</Description>
     <Authors>GameCult</Authors>
-    <RepositoryUrl>https://github.com/GameCult/CultMath</RepositoryUrl>
+    <RepositoryUrl>https://github.com/GameCult/CultLib</RepositoryUrl>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <NoWarn>$(NoWarn);CS8981</NoWarn>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
diff --git a/unity/org.gamecult.cultmath/README.md b/unity/org.gamecult.cultmath/README.md
index 223e16c..ad8af61 100644
--- a/unity/org.gamecult.cultmath/README.md
+++ b/unity/org.gamecult.cultmath/README.md
@@ -22,7 +22,7 @@ DLL/PDB and stable Unity metadata, and stages an inspectable package under
 Consume the repository package with:
 
 ```json
-"org.gamecult.cultmath": "https://github.com/GameCult/CultMath.git?path=/unity/org.gamecult.cultmath"
+"org.gamecult.cultmath": "https://github.com/GameCult/CultLib.git?path=/packages/cultmath/unity/org.gamecult.cultmath#cultmath-unity-v0.1.2"
 ```
 
 Production consumers should pin that URL to a commit or release tag.