I created Intoterica for personal use to suit the needs of my homebrew world setting, where there is access to an internet-like network through magic, thus, Intoterica. I use it as a comprehensive campaign management suite designed to bring depth, organization, and immersion to my game. It bridges the gap between GM management and player immersion by providing a unified interface for tracking the living world around your party. It has tools such as faction management, integrates with Foriens Quest logs to show active quests, an achievement system, and player character profiles where they can keep a record of quests they have completed, achievements they have, and factions they are in. There is even a messaging system for GMs to message player characters from NPCs as if they are receiving a letter/email. It has integrated sounds/music, all of which should be open source. Though it was created for personal use, I am sure some others would find value in it. Below is the README:
A native Foundry VTT campaign management system for tracking quests, factions, achievements, and communications.