Bernhard Schussek has announced a tool for handling resources in a more Composer-inspired way: Puli. Puli is described as a tool that "manages files, directories and other resources in a filesystem-like repository".

Unfortunately, sharing your work gets a lot harder when you leave PHP code and enter the land of configuration files, images, CSS files, translation catalogs - in short, any file that is not PHP. For brevity, I'll call these files resources here. Using resources located in Composer packages is quite tedious: You need to know exactly where the package is installed and where the resource is located in the package. That's a lot of juggling with absolute and relative file system paths and prone to error.

[...] One and a half years ago I talked about this problem with PHP-FIG. I wrote a blog post about The Power of Uniform Resource Location in PHP. Many people joined the discussion. The understanding of the problem and its solution got riper as we spoke. Today, I am glad to present to you the first (and probably last) alpha version of Puli, a framework-agnostic resource manager for PHP.

He walks through the basics of the tool - how it manages the various resources, what the configuration looks like and how it can directly be integrated with Composer. He also points to a Twig extension that allows for Puli integration via paths in your templates. There's also a Symfony bridge that lets you use it in your YAML configuration files.