diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ec3bcd..ab28ab5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Added
 
+* Add initial JavaScript/TypeScript/Fractal support to `versa install` and `versa run`.
 * Add a Symfony project type.
 * Automatically use PHPUnit or ParaTest based on `require-dev` dependencies.
 * Automatically find the PHP project type (i.e. Drupal or Sculpin) based on its `composer.json` dependencies.
diff --git a/src/Console/Command/BuildCommand.php b/src/Console/Command/BuildCommand.php
index 3b29b8c..04363d7 100644
--- a/src/Console/Command/BuildCommand.php
+++ b/src/Console/Command/BuildCommand.php
@@ -2,6 +2,7 @@
 
 namespace App\Console\Command;
 
+use App\Enum\ProjectLanguage;
 use App\Enum\ProjectType;
 use App\Process\Process;
 use RuntimeException;
@@ -14,6 +15,7 @@ final class BuildCommand extends AbstractCommand
 {
     public function execute(InputInterface $input, OutputInterface $output): int
     {
+        $projectLanguage = null;
         $projectType = null;
 
         $extraArgs = $input->getOption('extra-args');
@@ -25,6 +27,8 @@ final class BuildCommand extends AbstractCommand
         // based on its dependencies.
         // TODO: move this logic to a service so it can be tested.
         if ($filesystem->exists($workingDir.'/composer.json')) {
+            $projectLanguage = ProjectLanguage::PHP->value;
+
             $json = json_decode(
                 json: strval(file_get_contents($workingDir.'/composer.json')),
                 associative: true,
@@ -39,40 +43,61 @@ final class BuildCommand extends AbstractCommand
             } elseif (in_array(needle: 'symfony/framework-bundle', haystack: $dependencies, strict: true)) {
                 $projectType = ProjectType::Symfony->value;
             }
+        } elseif ($filesystem->exists($workingDir.'/fractal.config.js')) {
+            $projectLanguage = ProjectLanguage::JavaScript->value;
+            $projectType = ProjectType::Fractal->value;
         }
 
-        // Even if the project type is found automatically, still override it with
-        // the option value if there is one.
+        // Even if the project language or type is found automatically, still
+        // override it with the option value if there is one.
+        $projectLanguage = $input->getOption('language') ?? $projectLanguage;
         $projectType = $input->getOption('type') ?? $projectType;
 
         $isDockerCompose = $filesystem->exists($workingDir . '/docker-compose.yaml');
 
-        switch ($projectType) {
-            case ProjectType::Drupal->value:
-                if ($isDockerCompose) {
-                    $process = Process::create(
-                        command: ['docker', 'compose', 'build'],
-                        extraArgs: $extraArgs,
-                        workingDir: $workingDir,
-                    );
+        switch ($projectLanguage) {
+            case ProjectLanguage::PHP->value:
+                switch ($projectType) {
+                    case ProjectType::Drupal->value:
+                        if ($isDockerCompose) {
+                            $process = Process::create(
+                                command: ['docker', 'compose', 'build'],
+                                extraArgs: $extraArgs,
+                                workingDir: $workingDir,
+                            );
 
-                    $process->run();
+                            $process->run();
+                        }
+                        break;
+
+                    case ProjectType::Symfony->value:
+                        // TODO: run humbug/box if added to generate a phar?
+                        throw new RuntimeException('No build command set for Symfony projects.');
+
+                    case ProjectType::Sculpin->value:
+                        $process = Process::create(
+                            command: ['./vendor/bin/sculpin', 'generate'],
+                            extraArgs: $extraArgs,
+                            workingDir: $workingDir,
+                        );
+
+                        $process->run();
+                        break;
+            }
+
+            case ProjectLanguage::JavaScript->value:
+                switch ($projectType) {
+                    case ProjectType::Fractal->value:
+                        $process = Process::create(
+                            command: ['npx', 'fractal', 'build'],
+                            extraArgs: $extraArgs,
+                            workingDir: $workingDir,
+                        );
+
+                        $process->run();
+                        break;
                 }
                 break;
-
-            case ProjectType::Symfony->value:
-                // TODO: run humbug/box if added to generate a phar?
-                throw new RuntimeException('No build command set for Symfony projects.');
-
-            case ProjectType::Sculpin->value:
-                $process = Process::create(
-                    command: ['./vendor/bin/sculpin', 'generate'],
-                    extraArgs: $extraArgs,
-                    workingDir: $workingDir,
-                );
-
-                $process->run();
-                break;
         }
 
         return Command::SUCCESS;
diff --git a/src/Console/Command/InstallCommand.php b/src/Console/Command/InstallCommand.php
index 862c03d..5f5e923 100644
--- a/src/Console/Command/InstallCommand.php
+++ b/src/Console/Command/InstallCommand.php
@@ -21,10 +21,13 @@ final class InstallCommand extends AbstractCommand
 
         // TODO: validate the language is an allowed value.
 
+        $filesystem = new Filesystem();
+
         // TODO: Composer in Docker Compose?
         $process = Process::create(
             command: $this->getCommand(
-                language: $input->getOption('language'),
+                filesystem: $filesystem,
+                language: $this->getProjectLanguage($filesystem, $workingDir, $input),
                 workingDir: $workingDir,
             ),
             extraArgs: $extraArgs,
@@ -38,14 +41,13 @@ final class InstallCommand extends AbstractCommand
     }
 
     /**
+     * @param Filesystem $filesystem
      * @param non-empty-string $language
      * @param non-empty-string $workingDir
      * @return non-empty-array<int, non-empty-string>
      */
-    private function getCommand(string $language, string $workingDir): array
+    private function getCommand(Filesystem $filesystem, string $language, string $workingDir): array
     {
-        $filesystem = new Filesystem();
-
         if ($language === ProjectLanguage::JavaScript->value) {
             if ($filesystem->exists($workingDir.'/yarn.lock')) {
                 return ['yarn'];
@@ -59,4 +61,22 @@ final class InstallCommand extends AbstractCommand
         return ['composer', 'install'];
     }
 
+    /**
+     * @param Filesystem $filesystem
+     * @param non-empty-string $workingDir
+     * @param InputInterface $input
+     * @return non-empty-string
+     */
+    private function getProjectLanguage(Filesystem $filesystem, string $workingDir, InputInterface $input): string {
+        $projectLanguage = null;
+
+        // Determine the language based on the files.
+        if ($filesystem->exists($workingDir.'/composer.json')) {
+            $projectLanguage = ProjectLanguage::PHP->value;
+        } elseif ($filesystem->exists($workingDir.'/package.json')) {
+            $projectLanguage = ProjectLanguage::JavaScript->value;
+        }
+
+        return $input->getOption('language') ?? $projectLanguage;
+    }
 }
diff --git a/src/Console/Command/RunCommand.php b/src/Console/Command/RunCommand.php
index 637e6bd..6ed117c 100644
--- a/src/Console/Command/RunCommand.php
+++ b/src/Console/Command/RunCommand.php
@@ -2,6 +2,7 @@
 
 namespace App\Console\Command;
 
+use App\Enum\ProjectLanguage;
 use App\Enum\ProjectType;
 use App\Process\Process;
 use Symfony\Component\Console\Command\Command;
@@ -13,31 +14,45 @@ final class RunCommand extends AbstractCommand
 {
     public function execute(InputInterface $input, OutputInterface $output): int
     {
+        $projectLanguage = null;
         $projectType = null;
 
         $extraArgs = $input->getOption('extra-args');
         $workingDir = $input->getOption('working-dir');
 
+        $filesystem = new Filesystem();
+
         // Attempt to prepopulate some of the options, such as the project type
         // based on its dependencies.
         // TODO: move this logic to a service so it can be tested.
-        $json = json_decode(
-            json: strval(file_get_contents($workingDir.'/composer.json')),
-            associative: true,
-        );
+        if ($filesystem->exists($workingDir.'/composer.json')) {
+            $projectLanguage = ProjectLanguage::PHP->value;
 
-        $dependencies = array_keys($json['require']);
+            $json = json_decode(
+                json: strval(file_get_contents($workingDir.'/composer.json')),
+                associative: true,
+            );
 
-        if (in_array(needle: 'drupal/core', haystack: $dependencies, strict: true) || in_array(needle: 'drupal/core-recommended', haystack: $dependencies, strict: true)) {
-            $projectType = ProjectType::Drupal->value;
-        } elseif (in_array(needle: 'sculpin/sculpin', haystack: $dependencies, strict: true)) {
-            $projectType = ProjectType::Sculpin->value;
-        } elseif (in_array(needle: 'symfony/framework-bundle', haystack: $dependencies, strict: true)) {
-            $projectType = ProjectType::Symfony->value;
+            $dependencies = array_keys($json['require']);
+
+            if (in_array(needle: 'drupal/core', haystack: $dependencies, strict: true) || in_array(needle: 'drupal/core-recommended', haystack: $dependencies, strict: true)) {
+                $projectType = ProjectType::Drupal->value;
+            } elseif (in_array(needle: 'sculpin/sculpin', haystack: $dependencies, strict: true)) {
+                $projectType = ProjectType::Sculpin->value;
+            } elseif (in_array(needle: 'symfony/framework-bundle', haystack: $dependencies, strict: true)) {
+                $projectType = ProjectType::Symfony->value;
+            }
+        } elseif ($filesystem->exists($workingDir.'/package.json')) {
+            $projectLanguage = ProjectLanguage::JavaScript->value;
+
+            if ($filesystem->exists($workingDir.'/fractal.config.js')) {
+                $projectType = ProjectType::Fractal->value;
+            }
         }
 
         // Even if the project type is found automatically, still override it with
         // the option value if there is one.
+        $projectLanguage = $input->getOption('language') ?? $projectLanguage;
         $projectType = $input->getOption('type') ?? $projectType;
 
         $filesystem = new Filesystem();
@@ -49,19 +64,30 @@ final class RunCommand extends AbstractCommand
                 extraArgs: $extraArgs,
                 workingDir: $workingDir,
             );
-            $process->setTimeout(null);
 
+            $process->setTimeout(null);
             $process->run();
         } else {
             switch ($projectType) {
+                case ProjectType::Fractal->value:
+                    $process = Process::create(
+                        command: ['npx', 'fractal', 'start', '--sync'],
+                        extraArgs: $extraArgs,
+                        workingDir: $workingDir,
+                    );
+
+                    $process->setTimeout(null);
+                    $process->run();
+                    break;
+
                 case ProjectType::Sculpin->value:
                     $process = Process::create(
                         command: ['./vendor/bin/sculpin', 'generate', '--server', '--watch'],
                         extraArgs: $extraArgs,
                         workingDir: $workingDir,
                     );
-                    $process->setTimeout(null);
 
+                    $process->setTimeout(null);
                     $process->run();
                     break;
             }
diff --git a/src/Enum/ProjectType.php b/src/Enum/ProjectType.php
index c036761..f5f77b2 100644
--- a/src/Enum/ProjectType.php
+++ b/src/Enum/ProjectType.php
@@ -6,6 +6,9 @@ namespace App\Enum;
 
 enum ProjectType: string
 {
+    // JavaScript.
+    case Fractal = 'fractal';
+
     // PHP.
     case Drupal = 'drupal';
     case Sculpin = 'sculpin';