Firely Terminal is a FHIR package manager. Packages are the core distribution mechanism for sets of profiles and the recommended way to do resource versioning. Profiles and other conformance resources rarely live in isolation. Together they form a use case, and they usually need other resources from a national initiative, and they certainly need the FHIR core base profiles.
In the pages below you will find more information on the possibilities of package management within Firely Terminal.