Arvados @projects@ are used to organize objects. Projects can contain @collections@, @container requests@, @workflows@, etc. Projects can also contain other projects. An object is part of a project if the @owner_uuid@ of the object is set to the uuid of the project.
-Projects are implemented as a subtype of the Arvados @group@ object type, with @group_class@ set to the value "project". More information is available in the "groups API reference":/api/methods/groups.html.
+Projects are implemented as a subtype of the Arvados @group@ object type, with @group_class@ set to the value "project". More information is available in the "groups API reference":{{ site.baseurl }}/api/methods/groups.html.
Projects can be manipulated via Workbench, the cli tools, the SDKs, and the Arvados APIs.
Because the home project is a virtual project, other operations via the @groups@ API are not supported.
-h2. Filter groups
+h2(#filtergroups). Filter groups
Filter groups are another type of virtual project. They are implemented as an Arvados @group@ object with @group_class@ set to the value "filter".