Usage for Developers
The mod only adds one block, the Summoning Altar. A second block, the Indestructible Summoning Altar, is just an unbreakable variant of the same block that can be used if you provide a custom world or structure for your players. The altar block does not come with a recipe by default, so you will have to add one yourself if you want players to be able to craft it.
The mod has native KubeJS support. This allows easy creation of complex recipes, as well as the use of custom events to introduce custom behavior and logic to the rituals. Use the navigation on the side to find the documentation for all the topics you are interested in.
It is recommended to start with the recipe basics and follow the guidance from there.
If you want to see examples that use most of the available functions, see the examples page.