TyroSiteFramework is Tyrolium's internal PHP framework, designed primarily to build client websites and web applications quickly and in a structured way. Its core principle is a reusable .phtml component system with automated imports, making it possible to build a full page by assembling blocks without tedious configuration. Page ID-based routing simplifies navigation, while the modular extension system allows features to be added on a per-project basis. It can also expose API endpoints, but building websites for Tyrolium's clients remains its primary use case. Zero external dependencies, full code control.