- First commit, just began working on it

src/Asset.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Picea\Asset;
+
+use Picea\Compiler;
+
+class Asset {
+
+    public function registerExtension(Compiler $compiler) : self
+    {
+        $compiler->registerExtension(new Extension\ImportmapExtension());
+
+        return $this;
+    }
+}

src/Connector/Npm.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Picea\Asset\Connector;
+
+class Npm
+{
+    # @todo
+}

src/Extension/ImportmapExtension.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Picea\Asset\Extension;
+
+use Picea\Compiler\Context;
+use Picea\Extension\Extension;
+use Picea\Extension\FunctionExtension;
+
+class ImportmapExtension implements Extension {
+
+    public array $token = [ "importmap:print" ];
+   
+    public function parse(Context &$context, ?string $arguments, string $token, array $options = []) : string
+    {
+        $cls = static::class;
+
+        switch($token) {
+            case "importmap:print":
+                return "PRINTED";
+        }
+
+        $rendered = json_encode([
+            'output !'
+        ]);
+
+        return "<?php echo '<script type=\"importmap\">$rendered</script>' ?>";
+    }
+}