The AOC Consortium has a common testing instance for all administrators. There you will find a common space where you can see the work previously done by other organizations.
You can see examples at https://pilotatge.bustiaetica.pre.seu-e.cat/.
If you have already applied for the service, there is no need to do anything else. We will provide administrator role access to the person responsible for system administration who is listed as the technical contact on the application.
If you don't plan to do it, but want to test it out, you can test the platform at https://try.globaleaks.org/#/ .