diff --git a/.github/workflows/test-eslint.yml b/.github/workflows/test-eslint.yml
new file mode 100644
index 00000000..4401833b
--- /dev/null
+++ b/.github/workflows/test-eslint.yml
@@ -0,0 +1,52 @@
+name: ESLint Tests
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - 'packages/eslint-config-humanmade/**'
+      - 'package.json'
+      - 'package-lock.json'
+      - '.github/workflows/test-eslint.yml'
+  pull_request:
+    paths:
+      - 'packages/eslint-config-humanmade/**'
+      - 'package.json'
+      - 'package-lock.json'
+      - '.github/workflows/test-eslint.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: ESLint / Node ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - 20
+          - 22
+          - 24
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install root dependencies
+        run: npm ci
+
+      - name: Install ESLint package dependencies
+        working-directory: packages/eslint-config-humanmade
+        run: npm ci
+
+      - name: Run ESLint tests
+        run: npm run test:eslint
diff --git a/.github/workflows/test-php.yml b/.github/workflows/test-php.yml
new file mode 100644
index 00000000..02c6febf
--- /dev/null
+++ b/.github/workflows/test-php.yml
@@ -0,0 +1,67 @@
+name: PHP Tests
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - 'HM/**'
+      - 'HM-Minimum/**'
+      - 'tests/**'
+      - 'composer.json'
+      - 'phpunit.xml.dist'
+      - 'ruleset.xml'
+      - '.github/workflows/test-php.yml'
+  pull_request:
+    paths:
+      - 'HM/**'
+      - 'HM-Minimum/**'
+      - 'tests/**'
+      - 'composer.json'
+      - 'phpunit.xml.dist'
+      - 'ruleset.xml'
+      - '.github/workflows/test-php.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: PHP ${{ matrix.php-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - '8.2'
+          - '8.3'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up PHP ${{ matrix.php-version }}
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # 2.37.0
+        with:
+          php-version: ${{ matrix.php-version }}
+          coverage: none
+
+      - name: Cache Composer dependencies
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: ~/.cache/composer/files
+          key: composer-${{ matrix.php-version }}-${{ hashFiles('composer.json') }}
+          restore-keys: |
+            composer-${{ matrix.php-version }}-
+            composer-
+
+      - name: Install Composer dependencies
+        # Ignore platform requirements as PHPUnit may require a higher PHP version than the minimum supported.
+        run: composer install --ignore-platform-reqs
+
+      - name: Run PHPUnit (AllSniffs)
+        # Pass settings via CLI to avoid PHPUnit config file compatibility issues across versions.
+        run: vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/AllSniffs.php
+
+      - name: Run PHPUnit (FixtureTests)
+        run: vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/FixtureTests.php
diff --git a/.github/workflows/test-stylelint.yml b/.github/workflows/test-stylelint.yml
new file mode 100644
index 00000000..f279cd09
--- /dev/null
+++ b/.github/workflows/test-stylelint.yml
@@ -0,0 +1,52 @@
+name: Stylelint Tests
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - 'packages/stylelint-config/**'
+      - 'package.json'
+      - 'package-lock.json'
+      - '.github/workflows/test-stylelint.yml'
+  pull_request:
+    paths:
+      - 'packages/stylelint-config/**'
+      - 'package.json'
+      - 'package-lock.json'
+      - '.github/workflows/test-stylelint.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Stylelint / Node ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - 20
+          - 22
+          - 24
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install root dependencies
+        run: npm ci
+
+      - name: Install Stylelint package dependencies
+        working-directory: packages/stylelint-config
+        run: npm ci
+
+      - name: Run Stylelint tests
+        run: npm run test:stylelint
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 206de4d9..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,96 +0,0 @@
-# Setup caching
-cache:
-  directories:
-    - $HOME/.cache/composer/files
-    - $HOME/.npm
-    - node_modules
-
-branches:
-  only:
-    - master
-
-# Test in modern and recent versions of PHP & Node.
-# Run each code style tool in containers specific to that tool's language.
-jobs:
-  include:
-    - language: php
-      php: 8.2
-      install:
-        # For PHP 8.0+, we need to ignore platform reqs as PHPUnit 7 is still used.
-        - composer install --ignore-platform-reqs
-      script:
-        # For PHP 8.1+, we need to ignore the config file so that PHPUnit 7 doesn't try to read it and cause an error.
-        # Instead, we pass all required settings as part of the phpunit command.
-        - vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/AllSniffs.php
-        - vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/FixtureTests.php
-
-    - language: php
-      php: 8.3
-      install:
-        # For PHP 8.0+, we need to ignore platform reqs as PHPUnit 7 is still used.
-        - composer install --ignore-platform-reqs
-      script:
-        # For PHP 8.1+, we need to ignore the config file so that PHPUnit 7 doesn't try to read it and cause an error.
-        # Instead, we pass all required settings as part of the phpunit command.
-        - vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/AllSniffs.php
-        - vendor/bin/phpunit --no-configuration --bootstrap=tests/bootstrap.php --dont-report-useless-tests tests/FixtureTests.php
-
-    - language: node_js
-      node_js: 20
-      install:
-        - npm ci
-        - cd packages/eslint-config-humanmade
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:eslint
-
-    - language: node_js
-      node_js: 20
-      install:
-        - npm ci
-        - cd packages/stylelint-config
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:stylelint
-
-    - language: node_js
-      node_js: 22
-      install:
-        - npm ci
-        - cd packages/eslint-config-humanmade
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:eslint
-
-    - language: node_js
-      node_js: 22
-      install:
-        - npm ci
-        - cd packages/stylelint-config
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:stylelint
-
-    - language: node_js
-      node_js: 24
-      install:
-        - npm ci
-        - cd packages/eslint-config-humanmade
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:eslint
-
-    - language: node_js
-      node_js: 24
-      install:
-        - npm ci
-        - cd packages/stylelint-config
-        - npm ci
-        - cd ../..
-      script:
-        - npm run test:stylelint