diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
new file mode 100644
index 0000000..2dca508
--- /dev/null
+++ b/.github/workflows/build.yaml
@@ -0,0 +1,32 @@
+name: "Build"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  phpstan:
+    name: PHPStan
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version: [ '8.0', '8.1', '8.2', '8.3', '8.4', '8.5' ]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+
+      - name: Install dependencies
+        run: composer install --prefer-dist
+
+      - name: Run PHPStan
+        run: composer phpstan
diff --git a/.gitignore b/.gitignore
index 0e36ec8..8ba2eba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /vendor
 /composer.lock
 /.idea
+/phpstan.neon
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 8b9ead9..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-language: php
-
-php:
-    - 7.1
-    - 7.2
-    - 7.3
-
-matrix:
-    fast_finish: true
-
-cache:
-    directories:
-        - $HOME/.composer/cache
-
-before_script:
-    - composer install --no-interaction --prefer-source
-
-script:
-    - vendor/bin/phpstan analyze src -l 7 -c .phpstan.neon
-
-after_failure:
-    # Print *.actual content & log content
-    - for i in $(find tests -name \*.actual); do echo "--- $i"; cat $i; echo; echo; done
-    - for i in $(find tests -name \*.log); do echo "--- $i"; cat $i; echo; echo; done
diff --git a/composer.json b/composer.json
index ea00042..83ac8ac 100644
--- a/composer.json
+++ b/composer.json
@@ -35,6 +35,9 @@
 	"autoload": {
 		"psr-4": { "Nextras\\FormsRendering\\": "src/" }
 	},
+	"scripts": {
+		"phpstan": "phpstan analyze"
+	},
 	"autoload-dev": {
 		"psr-4": {
 			"NextrasDemos\\FormsRendering\\LatteMacros\\": "examples/lattemacros/",
diff --git a/examples/lattemacros/LatteMacrosPresenter.php b/examples/lattemacros/LatteMacrosPresenter.php
index b26dca4..c24113d 100644
--- a/examples/lattemacros/LatteMacrosPresenter.php
+++ b/examples/lattemacros/LatteMacrosPresenter.php
@@ -8,12 +8,12 @@
 
 class LatteMacrosPresenter extends Presenter
 {
-	public function actionDefault()
+	public function actionDefault(): void
 	{
 	}
 
 
-	public function createComponentForm()
+	public function createComponentForm(): Form
 	{
 		$form = new Form();
 		$form->addText('text', 'Name');
diff --git a/examples/renderers/RenderersPresenter.php b/examples/renderers/RenderersPresenter.php
index dc343db..8a03322 100644
--- a/examples/renderers/RenderersPresenter.php
+++ b/examples/renderers/RenderersPresenter.php
@@ -25,14 +25,14 @@ class RenderersPresenter extends Presenter
 	public $showBulky = true;
 
 
-	public function actionDefault()
+	public function actionDefault(): void
 	{
 		$this->template->renderer = $this->renderer;
 		$this->template->showBulky = $this->showBulky;
 	}
 
 
-	public function createComponentForm()
+	public function createComponentForm(): Form
 	{
 		$form = new Form();
 		$form->addText('text', 'Name');
diff --git a/.phpstan.neon b/phpstan.dist.neon
similarity index 64%
rename from .phpstan.neon
rename to phpstan.dist.neon
index 25bf1ec..ead69a6 100644
--- a/.phpstan.neon
+++ b/phpstan.dist.neon
@@ -1,3 +1,9 @@
 includes:
 	- vendor/phpstan/phpstan-nette/extension.neon
 	- vendor/phpstan/phpstan-nette/rules.neon
+
+parameters:
+	level: max
+	paths:
+		- src
+		- examples
diff --git a/readme.md b/readme.md
index c9d2acc..1296d2f 100644
--- a/readme.md
+++ b/readme.md
@@ -1,7 +1,7 @@
 Nextras Forms Rendering
 =======================
 
-[![Build Status](https://travis-ci.org/nextras/forms-rendering.svg?branch=master)](https://travis-ci.org/nextras/forms-rendering)
+[![Build](https://github.com/nextras/forms-rendering/actions/workflows/build.yaml/badge.svg)](https://github.com/nextras/forms-rendering/actions/workflows/build.yaml)
 [![Downloads this Month](https://img.shields.io/packagist/dm/nextras/forms-rendering.svg?style=flat)](https://packagist.org/packages/nextras/forms-rendering)
 [![Stable version](http://img.shields.io/packagist/v/nextras/forms-rendering.svg?style=flat)](https://packagist.org/packages/nextras/forms-rendering)
 
diff --git a/src/LatteTags/LabelNode.php b/src/LatteTags/LabelNode.php
index ca6e386..33590b5 100644
--- a/src/LatteTags/LabelNode.php
+++ b/src/LatteTags/LabelNode.php
@@ -33,7 +33,8 @@ public function print(PrintContext $context): string
 			$this->attributes,
 			$this->position,
 			$this->content,
-			$this->endLine
+			// TODO: Drop the `endLine` support once we no longer support forms < 3.3.
+			property_exists($this, 'endLine') ? $this->endLine : end($this->tagRanges),
 		);
 	}
 
diff --git a/src/Renderers/Bs4FormRenderer.php b/src/Renderers/Bs4FormRenderer.php
index de1cafb..2397ed4 100644
--- a/src/Renderers/Bs4FormRenderer.php
+++ b/src/Renderers/Bs4FormRenderer.php
@@ -147,7 +147,7 @@ private function controlsInit(): void
 		}
 
 		foreach ($this->form->getControls() as $control) {
-			if ($this->layout === FormLayout::INLINE && !$control instanceof Controls\Checkbox) {
+			if ($this->layout === FormLayout::INLINE && !$control instanceof Controls\Checkbox && method_exists($control, 'getLabelPrototype')) {
 				$control->getLabelPrototype()->addClass('my-1')->addClass('mr-2');
 			}
 
diff --git a/src/Renderers/Bs5FormRenderer.php b/src/Renderers/Bs5FormRenderer.php
index 8d6a025..c920aef 100644
--- a/src/Renderers/Bs5FormRenderer.php
+++ b/src/Renderers/Bs5FormRenderer.php
@@ -151,13 +151,13 @@ private function controlsInit(): void
 		}
 
 		foreach ($this->form->getControls() as $control) {
-			if ($this->layout === FormLayout::INLINE) {
+			if ($this->layout === FormLayout::INLINE && method_exists($control, 'getLabelPrototype')) {
 				// Unfortunately, the aforementioned solution does not seem to expect labels
 				// so we need to add some hacks. Notably, `.form-control`, `.form-select` and
 				// others add `display: block`, forcing the control onto a next line.
 				// The checkboxes are exception since they have their own inline class.
 
-				if (!$control instanceof Controls\Checkbox && !$control instanceof Controls\CheckboxList && !$control instanceof Controls\RadioList) {
+				if (!$control instanceof Controls\Checkbox && !$control instanceof Controls\CheckboxList && !$control instanceof Controls\RadioList && method_exists($control, 'getControlPrototype')) {
 					$control->getControlPrototype()->addClass('d-inline-block');
 
 					// But setting `display: inline-block` is not enough since the widgets will inherit