PHP static site generator. Fast and easy to get started. If your language of choice is PHP, you'll feel right at home if you need to extend Skosh.
Embedded Composer. Forget about managing library versions manually! Skosh embeds Composer to keep your source control focused and projects consistent.
Twig templates. Twig is a full-featured modern template engine. It's simple to learn and it is extendable, documented, concise and flexible.
Symfony's HTTP Kernel. Skosh is built on it. This lets you use Symfony Bundles to extend Skosh for any advanced functionality you need without extending Skosh directly.