Since its inception, SCP-2000 has been activated at least twice.
Foundation records regarding SCP-2000’s construction and history prior to this assumed first use have been lost.
Although the scope of engineering required to recreate SCP-2000 in its entirety is impossible to execute while maintaining secrecy, all subsystems of SCP-2000 have been successfully reproduced in laboratory setting; the installation and all procedures involved in its upkeep are mundane in nature.
(See Document 2000-SS-EX for information regarding esoteric Foundation technologies necessary for SCP-2000’s function).
And considering what we’ve had to deal with in these past few decades, we may have passed that point already.