Deno is not prescriptive about how developers make their modules available—modules may be imported from any source. To help publish and distribute modules, separate standalone solutions are provided.
Publishing on deno.land/x
A common way to publish Deno modules is via the official https://deno.land/x hosting service. It caches releases of open source modules and serves them at one easy to remember domain.
To use it, modules must be developed and hosted in public repositories on GitHub. Their source is then published to deno.land/x on tag creation. They can then be accessed by using a url in the following format:
Module versions are persistent and immutable. It is thus not possible to edit or delete a module (or version), to prevent breaking programs that rely on this module. Modules may be removed if there is a legal reason to do so (for example copyright infringement).
For more details, see Adding a Module.