Letting people in, on your terms
For the remote parent or the friend across an ocean, a livestream link on the page is the gentlest possible invitation: it asks nothing of them but a tap at the right time, and there is a countdown so no one has to work out the hour zone by zone. You set up the stream yourself and simply place its link on the page near the time it starts; the page is the doorway, not the broadcast.
If you would rather keep the details close, the same page can be password-protected and the password shared only with the people you choose. An elopement can stay intimate and still be generous: announce the day, offer the stream or the wishes wall, and let the words outlast a small ceremony that not everyone could stand inside.