Hosting a private instance of Eaglercraft 1.5.2 for you and your friends is remarkably simple. Prerequisites
It is crucial to distinguish that in later iterations (such as EaglercraftX for 1.8), the format evolved to support a wider range of compression types and update mechanisms. The 1.5.2 EPK format is considered relatively simple compared to modern iterations, often lacking advanced header flags or signature verification found in later security updates. Eaglercraft 1.5.2 Epk Files