How can an admin add a private Power-Up to a workspace?

Hi. I have developed a Power-Up in a personal workspace, and now it must be implemented in a different, shared workspace where I am not an admin.

How can the admin for that other workspace add my Power-Up to it?

Given that my Power-Up is not published in the public directory, searching for it after clicking that workspace’s Add Power-Ups button fails to find it.

I don’t want to have it appear in the public directory, but I have not been able to find any way to let that other person find it and enabled it on their workspace.

Please advise.