The authors in the federation share inert content brought to life through a running program provisioned on their own server from modules available in the open source.
The popular implementation of wiki is available for installation as a single package preconfigured with modules for wiki-client, wiki-server and a useful complement of wiki-plugins for common content types.
This wiki happens to be organized as npm modules which need not have a common source. We use the code sharing facilities of npm without having any fundamental dependency on it for the future of the federation.
Readers might encounter content in the federation that cannot yet be interpreted by the wiki implementation they have chosen. Sites conventionally offer complete and properly provisioned wiki implementations for read-only use by the public as is common for most sites on the internet. Increasingly sites include a page of instructions for provisioning new sites from the npm repository.