MW is a low footprint embedded UI framework core intended for use on very limited systems. It embeds the JPEG, Freetype, and Cairo libraries, so it only depends on X. It should be fairly portable, as the only thing you need is to create a window on every platform and manage the events.
Micro Signage is a lightweight software suite that can be used as the basis for creating digital signage appliances, such as advertisement screens and full software systems. It is intended to be used to control the playback of media files and be managed over the network through a socket server, which is included.
Class::EHierarchy is intended for use as a base class for custom objects. The objects need one or more of the following features: orderly bottom-up destruction of objects, opaque objects, class-based access restrictions for properties and methods, primitive strict property type awareness, and alias-based object retrieval.
autofwd is an automated firewalling daemon intended to block hosts performing unwanted acts. While it was designed to be used to thwart hosts running dictionary attacks on logins (of any service), it can be used for just about anything. The external commands it runs are configurable, allowing you to take additional actions against offending hosts such as running an nmap OS fingerprint before firewalling, or just silently logging the event.
The Paranoid modules provide a number of routines that are intended for use in strict and taint-safe scripts. The modules cover a variety of tasks from command-line argument parsing to process and network management. All of the modules use a debug trace framework for diagnostic output that is easily used and extended for application code as well.
Mojolicious is "Duct Tape For The HTML5 Web". It is powerful with no dependencies out of the box with RESTful routes, plugins, Perl-ish templates, session management, signed cookies, a testing framework, a static file server, I18N, first class Unicode support, and much more. It has a very clean, portable, and object oriented pure Perl API without any hidden magic and no requirements besides Perl 5.10.1. It has a full stack HTTP 1.1 and WebSocket client/server implementation with TLS, Bonjour, IDNA, Comet (long polling), chunking, and multipart support. It has a built-in async I/O Web server supporting EV pluggable event queue, Unix domain sockets, and hot deployment, perfect for embedding. Automatic CGI, FastCGI, and PSGI detection for any deployment situation. It has a JSON and XML/HTML5 parser with an advanced CSS3 selector support. The code is based upon years of experience developing Catalyst.