diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4afa0ff..bc65496 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,86 @@ on:
       - main
 
 jobs:
+  build_linux:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        working-directory: ./packages/vector/ppx_vector
+    strategy:
+      matrix:
+        os: [ubuntu-18.04]
+        ocaml-compiler:
+          - 4.12.1
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use OCaml ${{ matrix.ocaml-compiler}}
+        uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+
+      - name: Install deps
+        run: opam install . --deps-only --with-test
+
+      - name: Build
+        run: opam exec -- dune build
+
+      - name: Copy built PPX file
+        run: |
+          mv ./_build/default/bin/bin.exe ppx.exe
+
+      - name: (only on release) Upload artifacts ${{ matrix.os }}
+        uses: actions/upload-artifact@master
+        with:
+          name: ${{ matrix.os }}
+          path: ./packages/vector/ppx_vector/ppx.exe
+          if-no-files-found: error
+
+  build_macos:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        working-directory: ./packages/vector/ppx_vector
+    strategy:
+      matrix:
+        os: [macOS-latest]
+        ocaml-compiler:
+          - 4.12.1
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use OCaml ${{ matrix.ocaml-compiler}}
+        uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+
+      - name: Install deps
+        run: opam install . --deps-only --with-test
+
+      - name: Build
+        run: opam exec -- dune build
+
+      - name: Copy built PPX file
+        run: |
+          mv ./_build/default/bin/bin.exe ppx.exe
+      
+      - name: ls
+        run: |
+          echo $(ls)
+
+      - name: (only on release) Upload artifacts ${{ matrix.os }}
+        uses: actions/upload-artifact@master
+        with:
+          name: ${{ matrix.os }}
+          path: ./packages/vector/ppx_vector/ppx.exe
+          if-no-files-found: error
+
   release:
+    needs: [build_linux, build_macos]
     name: Release
     runs-on: ubuntu-latest
     permissions:
@@ -24,6 +103,27 @@ jobs:
         with:
           node-version: 14.x
 
+      - name: Download linux artifacts
+        if: success()
+        uses: actions/download-artifact@master
+        with:
+          name: ubuntu-18.04
+          path: binaries/linux
+
+      - name: Download macOS artifacts
+        if: success()
+        uses: actions/download-artifact@master
+        with:
+          name: macOS-latest
+          path: binaries/darwin
+
+      - name: Move artifacts
+        if: success()
+        run: |
+          mkdir -p bin
+          mv binaries/linux/ppx.exe ./packages/vector/ppx-linux.exe
+          mv binaries/darwin/ppx.exe ./packages/vector/ppx-osx.exe
+
       - name: Install Dependencies
         run: yarn install --immutable
 
diff --git a/packages/vector/package.json b/packages/vector/package.json
index 82e33e8..db36ba1 100644
--- a/packages/vector/package.json
+++ b/packages/vector/package.json
@@ -38,7 +38,8 @@
     "clean": "rescript clean",
     "test": "node tests/vector_test.mjs | faucet",
     "test:watch": "yarn test || true && watchlist src tests -- yarn test",
-    "test:coverage": "c8 -r text -r lcov yarn test"
+    "test:coverage": "c8 -r text -r lcov yarn test",
+    "postinstall": "node ./postInstall.js"
   },
   "files": [
     "dist",
diff --git a/packages/vector/postInstall.js b/packages/vector/postInstall.js
new file mode 100644
index 0000000..fe2edbd
--- /dev/null
+++ b/packages/vector/postInstall.js
@@ -0,0 +1,51 @@
+const path = require("path");
+const fs = require("fs");
+
+const installMacLinuxBinary = (binary) => {
+  const source = path.join(__dirname, binary);
+  if (fs.existsSync(source)) {
+    // mac and linux support extension-less executables
+    // so just overwrite the shell script
+    const target = path.join(__dirname, "ppx");
+    fs.renameSync(source, target);
+
+    // The ppx should be executable in the bundle, but just in case
+    fs.chmodSync(target, 0777);
+  } else {
+    // assume we're in dev mode - nothing will break if the script
+    // isn't overwritten, it will just be slower
+  }
+};
+
+const installWindowsBinary = () => {
+  const source = path.join(__dirname, "ppx-windows.exe");
+  if (fs.existsSync(source)) {
+    const target = path.join(__dirname, "ppx.exe");
+    fs.renameSync(source, target);
+
+    // windows scripts use a different file extension to executables
+    // so we delete the script to make sure windows uses the exe now
+    const windowsScript = path.join(__dirname, "ppx.cmd");
+    fs.unlinkSync(windowsScript);
+  } else {
+    // assume we're in dev mode - nothing will break if the script
+    // isn't overwritten, it will just be slower
+  }
+};
+
+switch (process.platform) {
+  case "linux":
+    installMacLinuxBinary("ppx-linux.exe");
+    break;
+  case "darwin":
+    installMacLinuxBinary("ppx-osx.exe");
+    break;
+  case "win32":
+    installWindowsBinary();
+    break;
+  default:
+    // This won't break the installation because the `ppx` shell script remains
+    // but that script will throw an error in this case anyway
+    console.warn(`No release available for "${process.platform}"`);
+    process.exit(1);
+}
diff --git a/packages/vector/ppx_vector/.gitignore b/packages/vector/ppx_vector/.gitignore
new file mode 100644
index 0000000..e3ee242
--- /dev/null
+++ b/packages/vector/ppx_vector/.gitignore
@@ -0,0 +1,3 @@
+.vscode
+_build
+.merlin
diff --git a/packages/vector/ppx_vector/.ocamlformat b/packages/vector/ppx_vector/.ocamlformat
new file mode 100644
index 0000000..e69de29
diff --git a/packages/vector/ppx_vector/README.md b/packages/vector/ppx_vector/README.md
new file mode 100644
index 0000000..d5686fc
--- /dev/null
+++ b/packages/vector/ppx_vector/README.md
@@ -0,0 +1,22 @@
+# Ppx Vector
+
+## Install
+
+```
+yarn add rescript-vector
+```
+
+```
+// bsconfig.json
+
+"ppx-flags": [
+  ...,
+  ["rescript-vector/ppx"]
+],
+```
+
+## Example
+
+```rescript
+let rv = %vec([1, 2, 3])
+```
diff --git a/packages/vector/ppx_vector/bin/bin.ml b/packages/vector/ppx_vector/bin/bin.ml
new file mode 100644
index 0000000..491feba
--- /dev/null
+++ b/packages/vector/ppx_vector/bin/bin.ml
@@ -0,0 +1 @@
+let () = Ppxlib.Driver.run_as_ppx_rewriter ()
diff --git a/packages/vector/ppx_vector/bin/dune b/packages/vector/ppx_vector/bin/dune
new file mode 100644
index 0000000..cec8c38
--- /dev/null
+++ b/packages/vector/ppx_vector/bin/dune
@@ -0,0 +1,5 @@
+(executable
+ (package ppx_vector)
+ (name bin)
+ (public_name ppx_vector)
+ (libraries ppx_vector))
diff --git a/packages/vector/ppx_vector/dune b/packages/vector/ppx_vector/dune
new file mode 100644
index 0000000..047f9fd
--- /dev/null
+++ b/packages/vector/ppx_vector/dune
@@ -0,0 +1 @@
+(dirs src bin)
diff --git a/packages/vector/ppx_vector/dune-project b/packages/vector/ppx_vector/dune-project
new file mode 100644
index 0000000..594be3f
--- /dev/null
+++ b/packages/vector/ppx_vector/dune-project
@@ -0,0 +1,2 @@
+(lang dune 3.0)
+(name ppx_vector)
diff --git a/packages/vector/ppx_vector/dune-workspace b/packages/vector/ppx_vector/dune-workspace
new file mode 100644
index 0000000..a91e0a0
--- /dev/null
+++ b/packages/vector/ppx_vector/dune-workspace
@@ -0,0 +1,3 @@
+(lang dune 3.0)
+
+(env (release-static (flags (:standard -ccopt -static))))
diff --git a/packages/vector/ppx_vector/ppx b/packages/vector/ppx_vector/ppx
new file mode 100755
index 0000000..c67eb06
--- /dev/null
+++ b/packages/vector/ppx_vector/ppx
@@ -0,0 +1,18 @@
+#!/usr/bin/env sh
+
+# Get the directory of the script to work from.
+DIR=$(dirname "$0")
+
+if [ -f $DIR/_build/default/bin/bin.exe ]; then
+    # Use the dev build
+    $DIR/_build/default/bin/bin.exe $@
+elif [ "$(uname)" = "Darwin" ]; then
+    # Run the Mac PPX
+    $DIR/ppx-osx.exe $@
+elif [ "$(expr substr $(uname -s) 1 5)" = "Linux" ]; then
+    # Run the Linux PPX
+    $DIR/ppx-linux.exe $@
+else
+    echo "No release available for '$(uname)'"
+    exit 1
+fi
diff --git a/packages/vector/ppx_vector/ppx.cmd b/packages/vector/ppx_vector/ppx.cmd
new file mode 100644
index 0000000..efdf45e
--- /dev/null
+++ b/packages/vector/ppx_vector/ppx.cmd
@@ -0,0 +1,3 @@
+@echo off
+REM no need to branch on OS here, it will only be used on windows
+%~dp0\ppx-windows.exe %*
diff --git a/packages/vector/ppx_vector/ppx_vector.opam b/packages/vector/ppx_vector/ppx_vector.opam
new file mode 100644
index 0000000..d1eaca6
--- /dev/null
+++ b/packages/vector/ppx_vector/ppx_vector.opam
@@ -0,0 +1,36 @@
+opam-version: "2.0"
+name: "ppx_vector"
+version: "0.0.1"
+synopsis: "PPX generates ReScript vector"
+description: """
+PPX generates ReScript vector.
+"""
+maintainer: "Woonki Moon <woonki.moon@gmail.com>"
+authors: "Woonki Moon <woonki.moon@gmail.com>"
+license: "MIT"
+homepage: "https://github.com/reason-seoul/rescript-collection"
+bug-reports: "https://github.com/reason-seoul/rescript-collection/issues"
+depends: [
+  "ocaml" {>= "4.12.1"}
+  "dune" {>= "3.0"}
+  "ppxlib" {>= "0.22.0"}
+  "ppx_inline_test"
+  "ppx_expect"
+  "ppx_deriving"
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/reason-seoul/rescript-collection.git"
diff --git a/packages/vector/ppx_vector/src/dune b/packages/vector/ppx_vector/src/dune
new file mode 100644
index 0000000..ee63dad
--- /dev/null
+++ b/packages/vector/ppx_vector/src/dune
@@ -0,0 +1,9 @@
+(library
+ (name ppx_vector)
+ (public_name ppx_vector)
+ (kind ppx_rewriter)
+ (libraries ppxlib str)
+ (flags
+  (:standard -w -9))
+ (preprocess
+  (pps ppxlib.metaquot ppx_inline_test ppx_expect ppx_deriving.show)))
diff --git a/packages/vector/ppx_vector/src/ppx_vector.ml b/packages/vector/ppx_vector/src/ppx_vector.ml
new file mode 100644
index 0000000..aa4af91
--- /dev/null
+++ b/packages/vector/ppx_vector/src/ppx_vector.ml
@@ -0,0 +1,14 @@
+open Ppxlib
+
+let expand ~ctxt xs =
+  let loc = Expansion_context.Extension.extension_point_loc ctxt in
+  let arr = Ast_builder.Default.pexp_array ~loc xs in
+  [%expr Vector.fromArray [%e arr]]
+
+let extension =
+  Extension.V3.declare "vec" Extension.Context.expression
+    Ast_pattern.(single_expr_payload (pexp_array __))
+    expand
+
+let rule = Ppxlib.Context_free.Rule.extension extension
+let () = Ppxlib.Driver.register_transformation ~rules:[ rule ] "res_vector"