diff --git a/src/Router.php b/src/Router.php
index 04033e9..95e22b7 100644
--- a/src/Router.php
+++ b/src/Router.php
@@ -2,68 +2,8 @@
 
 namespace Sharkk\Router;
 
-class Router
+interface Router
 {
-	public array $routes = [];
-
-	public function add(string $method, string $route, callable $handler): Router
-	{
-		// Expand the route into segments and make dynamic segments into a common placeholder
-		$segments = array_map(function($segment) {
-			return str_starts_with($segment, ':') ? ':x' : $segment;
-		}, explode('/', trim($route, '/')));
-
-		// Push each segment into the routes array as a node, except if this is the root node
-		$node = &$this->routes;
-		foreach ($segments as $segment) {
-			// skip an empty segment, which allows us to register handlers for the root node
-			if ($segment === '') continue;
-			$node = &$node[$segment]; // build the node tree as we go
-		}
-
-		// Add the handler to the last node
-		$node[$method] = $handler;
-
-		return $this;
-	}
-
-	// @return array{code: int, handler: callable, params: array|null }
-	public function lookup(string $method, string $uri): array
-	{
-		// node is a reference to our current location in the node tree
-		$node = $this->routes;
-
-		// params will hold any dynamic segments we find
-		$params = [];
-
-		// We'll split up the URI into segments and traverse the node tree
-		foreach (explode('/', trim($uri, '/')) as $segment) {
-			// if there is a node for this segment, move to it
-			if (isset($node[$segment])) {
-				$node = $node[$segment];
-				continue;
-			}
-
-			// if there is a dynamic segment, move to it and store the value
-			if (isset($node[':x'])) {
-				$params[] = $segment;
-				$node = $node[':x'];
-				continue;
-			}
-
-			// if we can't find a node for this segment, return 404
-			return ['code' => 404];
-		}
-
-		// if we found a handler for the method, return it and any params. if not, return a 405
-		return isset($node[$method])
-			? ['code' => 200, 'handler' => $node[$method], 'params' => $params ?? null]
-			: ['code' => 405];
-	}
-
-	public function clear(): Router
-	{
-		$this->routes = [];
-		return $this;
-	}
+	public function add(string $method, string $route, callable $handler): Router;
+	public function lookup(string $method, string $uri): array;
 }
diff --git a/src/SegmentRouter.php b/src/SegmentRouter.php
new file mode 100644
index 0000000..1d61379
--- /dev/null
+++ b/src/SegmentRouter.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sharkk\Router;
+
+class SegmentRouter implements Router
+{
+	public array $routes = [];
+
+	public function add(string $method, string $route, callable $handler): Router
+	{
+		// Expand the route into segments and make dynamic segments into a common placeholder
+		$segments = array_map(function($segment) {
+			return str_starts_with($segment, ':') ? ':x' : $segment;
+		}, explode('/', trim($route, '/')));
+
+		// Push each segment into the routes array as a node, except if this is the root node
+		$node = &$this->routes;
+		foreach ($segments as $segment) {
+			// skip an empty segment, which allows us to register handlers for the root node
+			if ($segment === '') continue;
+			$node = &$node[$segment]; // build the node tree as we go
+		}
+
+		// Add the handler to the last node
+		$node[$method] = $handler;
+
+		return $this;
+	}
+
+	// @return array{code: int, handler: callable, params: array|null }
+	public function lookup(string $method, string $uri): array
+	{
+		// node is a reference to our current location in the node tree
+		$node = $this->routes;
+
+		// params will hold any dynamic segments we find
+		$params = [];
+
+		// We'll split up the URI into segments and traverse the node tree
+		foreach (explode('/', trim($uri, '/')) as $segment) {
+			// if there is a node for this segment, move to it
+			if (isset($node[$segment])) {
+				$node = $node[$segment];
+				continue;
+			}
+
+			// if there is a dynamic segment, move to it and store the value
+			if (isset($node[':x'])) {
+				$params[] = $segment;
+				$node = $node[':x'];
+				continue;
+			}
+
+			// if we can't find a node for this segment, return 404
+			return ['code' => 404];
+		}
+
+		// if we found a handler for the method, return it and any params. if not, return a 405
+		return isset($node[$method])
+			? ['code' => 200, 'handler' => $node[$method], 'params' => $params ?? null]
+			: ['code' => 405];
+	}
+
+	public function clear(): Router
+	{
+		$this->routes = [];
+		return $this;
+	}
+}