diff --git a/.github/workflows/build-listing.yml b/.github/workflows/build-listing.yml
new file mode 100644
index 0000000..e95ce72
--- /dev/null
+++ b/.github/workflows/build-listing.yml
@@ -0,0 +1,21 @@
+name: Build Package Listing
+
+on: 
+  workflow_dispatch:
+  workflow_run:
+    workflows: [Build Release]
+    types:
+      - completed
+  release:
+     types: [published, created, edited, unpublished, deleted, released]
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  
+  build-listing:
+    uses: Narazaka/vpm-repos/.github/workflows/build-package-listing.yml@main
\ No newline at end of file
diff --git a/.github/workflows/call-build-repo-listing.yml b/.github/workflows/call-build-repo-listing.yml
new file mode 100644
index 0000000..32e1bff
--- /dev/null
+++ b/.github/workflows/call-build-repo-listing.yml
@@ -0,0 +1,18 @@
+name: Call Build Repo Listing
+
+on:
+  workflow_dispatch:
+  workflow_run:
+    workflows: [Build Package Listing]
+    types:
+      - completed
+
+permissions:
+  contents: read
+
+jobs:
+  
+  build-listing:
+    uses: Narazaka/vpm-repos/.github/workflows/call-build-listing.yml@main
+    secrets:
+      DISPATCH_TOKEN: ${{ secrets.DISPATCH_TOKEN }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..aaf72f3
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,14 @@
+name: Build Release
+
+on: 
+  workflow_dispatch:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    uses: Narazaka/vpm-repos/.github/workflows/release.yml@main
\ No newline at end of file
diff --git a/FNV1a32.cs b/FNV1a32.cs
new file mode 100644
index 0000000..3e323fb
--- /dev/null
+++ b/FNV1a32.cs
@@ -0,0 +1,26 @@
+namespace Narazaka.SimpleHash
+{
+    public static class FNV1a32
+    {
+        // cvf. https://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function
+        const uint FNV_OFFSET_BASIS = 2166136261;
+        const uint FNV_PRIME = 16777619;
+        public static uint ComputeHash(byte[] bytes)
+        {
+            uint hash = FNV_OFFSET_BASIS;
+            var len = bytes.Length;
+            for (var i = 0; i < len; i++)
+            {
+                hash = (hash ^ bytes[i]) * FNV_PRIME;
+            }
+            return hash;
+        }
+
+#if HAS_UDON_ENCODING
+        public static uint ComputeHash(string str)
+        {
+            return ComputeHash(Koyashiro.UdonEncoding.UdonUTF8.GetBytes(str));
+        }
+#endif
+    }
+}
diff --git a/FNV1a32.cs.meta b/FNV1a32.cs.meta
new file mode 100644
index 0000000..57a890f
--- /dev/null
+++ b/FNV1a32.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: be3d0e46710dc2d46aa3de7995a915e3
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..1c98478
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (c) 2023 Narazaka
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+
+   3. This notice may not be removed or altered from any source
+   distribution.
diff --git a/LICENSE.txt.meta b/LICENSE.txt.meta
new file mode 100644
index 0000000..dab04ca
--- /dev/null
+++ b/LICENSE.txt.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 3e0c1a60cc84ba14fab784da4c4c7532
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Narazaka.SimpleHash.asmdef b/Narazaka.SimpleHash.asmdef
new file mode 100644
index 0000000..508bac7
--- /dev/null
+++ b/Narazaka.SimpleHash.asmdef
@@ -0,0 +1,22 @@
+{
+    "name": "Narazaka.SimpleHash",
+    "rootNamespace": "",
+    "references": [
+        "Koyashiro.UdonEncoding"
+    ],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [
+        {
+            "name": "net.koyashiro.udonencoding",
+            "expression": "0.4.4",
+            "define": "HAS_UDON_ENCODING"
+        }
+    ],
+    "noEngineReferences": false
+}
\ No newline at end of file
diff --git a/Narazaka.SimpleHash.asmdef.meta b/Narazaka.SimpleHash.asmdef.meta
new file mode 100644
index 0000000..72677fc
--- /dev/null
+++ b/Narazaka.SimpleHash.asmdef.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 5b0c9699ef476e2499186cdd8a56a723
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..9c2560b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,27 @@
+# Simple Hash
+
+Udon compatible 32bit hash lib
+
+- FNV1a32
+
+## Install
+
+1. https://vpm.narazaka.net/ から「Add to VCC」ボタンを押してリポジトリをVCCにインストールします。
+2. VCCでSettings→Packages→Installed Repositoriesの一覧中で「Narazaka VPM Listing」にチェックが付いていることを確認します。
+3. ワールドプロジェクトの「Manage Project」から「Simple Hash」をインストールします。
+
+## Usage
+
+```csharp
+using Narazaka.SimpleHash;
+var playerHash = FNV1a32.ComputeHash(Networking.LocalPlayer.displayName);
+```
+
+## 更新履歴
+
+- 1.0.0
+  - リリース
+
+## License
+
+[Zlib License](LICENSE.txt)
diff --git a/README.md.meta b/README.md.meta
new file mode 100644
index 0000000..fa7f0fb
--- /dev/null
+++ b/README.md.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: a70aebd7b4080f746b194b1d0d9ad5a2
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..53cc0bc
--- /dev/null
+++ b/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "net.narazaka.simple-hash",
+  "version": "1.0.0",
+  "displayName": "Simple Hash",
+  "description": "Udon compatible 32bit hash lib (FNV1a32)",
+  "author": {
+    "name": "Narazaka",
+    "url": "https://github.com/Narazaka"
+  },
+  "license": "Zlib",
+  "type": "tool",
+  "url" : "https://github.com/Narazaka/SimpleHash.git",
+  "vpmDependencies": {
+    "com.vrchat.worlds": ">=3.0.9"
+  }
+}
diff --git a/package.json.meta b/package.json.meta
new file mode 100644
index 0000000..a698197
--- /dev/null
+++ b/package.json.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 5c332d284c259e741b26a640f5a9d16d
+PackageManifestImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: