Another approach to multiple paths

router.php

<?php
$paths = array(
    '/users',
    '/users/*',
    '/users/*/lists',
    '/users/*/lists/*',
);

// Multiple paths handled by single callback
$r3->any($paths, function ($userId=null,$listId=null) {/***/}
))->by($processors)->when($conditions)->through($formatters)->accept($conneg);

// Multiple paths handled by single controller
$r3->any($paths, 'MyApp\Controllers\UserController'
))->by($processors)->when($conditions)->through($formatters)->accept($conneg);

$paths = array(
    '/users',
    '/users/*',
    '/users/*/lists',
    '/users/*/lists/*',
    '/user-roles',
    '/user-roles/*',
    '/user-roles/*/lists',
    '/user-roles/*/lists/*',
    '/user-perms',
    '/user-perms/*',
    '/user-perms/*/lists',
    '/user-perms/*/lists/*',
);

// Multiple paths handled by single factory 
// producing different controllers based on path
$r3->any($paths, "MyApp\Controllers\iControllerInterface", array('MyApp\Controllers\ControllerFactory', 'getControllerFor')
))->by($processors)->when($conditions)->through($formatters)->accept($conneg);

Possible implementation for linkTo:

    <?php
        $r3->any('/administrators/*', function ($adminId=null) {/***/}
    ))->by($allMeansPossible)->linksTo($userRoute->at('/users/*'), function($data, $link, $adminId) { // $adminId fed by ParamSynced
        $data['links'] = array("href" => $link, "title" => "User Page for {$data['name']}");
        return $data;
    });