diff --git a/.github/update-ada.sh b/.github/update-ada.sh
new file mode 100755
index 0000000..cae14ff
--- /dev/null
+++ b/.github/update-ada.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+set -e
+
+BASE_DIR=$(pwd)
+DEPENDENCIES_DIR="$BASE_DIR"
+
+WORKSPACE=$(mktemp -d 2> /dev/null || mktemp -d -t 'tmp')
+
+cleanup () {
+  EXIT_CODE=$?
+  [ -d "$WORKSPACE" ] && rm -rf "$WORKSPACE"
+  exit $EXIT_CODE
+}
+
+trap cleanup INT TERM EXIT
+
+cd "$WORKSPACE"
+curl -sL -o "ada" "https://github.com/ada-url/ada/releases/latest/download/singleheader.zip"
+unzip ada
+rm ada
+cp * "$DEPENDENCIES_DIR"
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 0000000..68121d6
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,36 @@
+name: macOS
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.20.x]
+        platform: [macos-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: ${{ matrix.go-version }}
+    - name: Checkout code
+      uses: actions/checkout@v3
+    - name: Test
+      run: go test
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 3f6cd05..6e8f369 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -1,6 +1,22 @@
-name: Go-CI
+name: Ubuntu
 
-on: [push, pull_request]
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   test:
@@ -17,5 +33,4 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v3
     - name: Test
-      run: |
-        go test 
+      run: go test
diff --git a/README.md b/README.md
index a626f2b..892dae2 100644
--- a/README.md
+++ b/README.md
@@ -1,39 +1,40 @@
+# goada: Fast WHATWG URL library in Go
+[![Go-CI](https://github.com/ada-url/goada/actions/workflows/ubuntu.yml/badge.svg)](https://github.com/ada-url/goada/actions/workflows/ubuntu.yml) 
+[![GoDoc](https://godoc.org/github.com/ada-url/goada?status.svg)](https://godoc.org/github.com/ada-url/goada)
 
-# goada : fast WHATGL URL library in Go
-[![Go-CI](https://github.com/ada-url/goada/actions/workflows/ubuntu.yml/badge.svg)](https://github.com/ada-url/goada/actions/workflows/ubuntu.yml) [![GoDoc](https://godoc.org/github.com/ada-url/goada?status.svg)](https://godoc.org/github.com/ada-url/goada)
+The goada library provides support for the WHATWG URL standard in Go.
 
-The goada library provides support for the WHATGL URL
-standard in Go.
+## Requirements
+
+- Go 1.20 or better.
 
-Examples:
 
+### Examples
 
 ```Go
-	url, nil := New("https://	www.GOoglé.com")
-	fmt.Println(url.Href()) // "https://www.xn--googl-fsa.com/"
+url, nil := New("https://	www.GOoglé.com")
+fmt.Println(url.Href()) // "https://www.xn--googl-fsa.com/"
 ```
 
-The standard `net/url` `Parse` function would refuse to parse the URL `"https://	www.GOoglé.com"` because it contains a tabulation character. Even if we remove the tabulation character, it would still parse it to an incorrect string as per the WHATGL URL standard (`https://www.GOogl%C3%A9.com`).
-
-## Requirements
-
-- Go 1.20 or better.
+The standard `net/url` `Parse` function would refuse to parse the URL `"https://	www.GOoglé.com"` because it 
+contains a tabulation character. Even if we remove the tabulation character, it would still parse it to an incorrect 
+string as per the WHATGL URL standard (`https://www.GOogl%C3%A9.com`).
 
-## Usage
+### Usage
 
 ```Go
-        import (
-           "github.com/ada-url/goada"
-           "fmt"
-        )
-
-	url, err := goada.New("https://www.GOogle.com")
-	if err != nil {
-		t.Error("Expected no error")
-	}
-	fmt.Println(url.Href()) // prints https://www.google.com/
-	url.SetProtocol("http:")
-	url.SetHash("goada")
-	fmt.Println(url.Hash()) // prints #goada
-	fmt.Println(url.Href()) // prints http://www.google.com/#goada
+import (
+   "github.com/ada-url/goada"
+   "fmt"
+)
+
+url, err := goada.New("https://www.GOogle.com")
+if err != nil {
+    t.Error("Expected no error")
+}
+fmt.Println(url.Href()) // prints https://www.google.com/
+url.SetProtocol("http:")
+url.SetHash("goada")
+fmt.Println(url.Hash()) // prints #goada
+fmt.Println(url.Href()) // prints http://www.google.com/#goada
 ```