In this directory you can find a few files with documentation. Note that there might be discrepancies between the docs and the actual implementation for newer features.
The files are present in Github-flavored Markdown and HTML:
architecture
describes the interaction between frontend and backend and the composition of the different files.metadata-schemas
is a general tutorial on how to use the applicationmetadata-schemas-tech
provides a more technical description of the JSON format in which the schemas are created as well as their lifecycle.