Valet Driver for Bedrock - Loading legacy PHP gives WordPress 404 Page.

I'm using a custom Valet Driver for Bedrock WordPress projects since my document root needs to be "html" instead of "web".

I have several legacy PHP scripts that I need to be able to load to process forms and other tasks.

I've moved these items into "html/legacy", but I can't seem to load via their URL. Instead I get a 404 page within WordPress.

Any help is much appreciated!

<?php

class LocalValetDriver extends LaravelValetDriver
{
    /**
     * Determine if the driver serves the request.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return bool
     */
    public function serves($sitePath, $siteName, $uri)
    {
        return file_exists($sitePath.'/html/app/mu-plugins/bedrock-autoloader.php') ||
               (is_dir($sitePath.'/html/app/') &&
                file_exists($sitePath.'/html/wp-config.php') &&
                file_exists($sitePath.'/config/application.php'));
    }
    /**
     * Determine if the incoming request is for a static file.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return string|false
     */
    public function isStaticFile($sitePath, $siteName, $uri)
    {
        $staticFilePath = $sitePath.'/html'.$uri;
        if ($this->isActualFile($staticFilePath)) {
            return $staticFilePath;
        }
        return false;
    }
    /**
     * Get the fully resolved path to the application's front controller.
     *
     * @param  string  $sitePath
     * @param  string  $siteName
     * @param  string  $uri
     * @return string
     */
    public function frontControllerPath($sitePath, $siteName, $uri)
    {
        $_SERVER['PHP_SELF'] = $uri;
        $_SERVER['SERVER_NAME'] = $_SERVER['HTTP_HOST'];
        if (strpos($uri, '/wp/') === 0) {
            return is_dir($sitePath.'/html'.$uri)
                ? $sitePath.'/html'.$this->forceTrailingSlash($uri).'/index.php'
                : $sitePath.'/html'.$uri;
        }
        return $sitePath.'/html/index.php';
    }
    /**
     * Redirect to uri with trailing slash.
     *
     * @param  string $uri
     * @return string
     */
    private function forceTrailingSlash($uri)
    {
        if (substr($uri, -1 * strlen('/wp/wp-admin')) == '/wp/wp-admin') {
            header('Location: '.$uri.'/'); die;
        }
        return $uri;
    }
}