I don't know how you imagine an online Zen temple. What should be clear, is that a temple is a place of religious service. People go there to get something. Most of the time rituals. Even in a Zen temple. It can also be a place of worship, as it usually houses a buddha statue, sutras, and occasionally relics. Temples also have at least one priest to do the services. Question is then, are you a priest, or do you know one to serve in the online temple? Another function of temples is community life. The online form of community life is found in forums, chatrooms and networking sites. Are you planning to have that too?
"If the Buddha-Nature is seen, there will be no seeing of a nature in any thing."
(Nirvana Sutra, T12n374p521b3; tr. Yamamoto)
"Neither cultivation nor seated meditation — this is the pure Chan of Tathagata."
(Mazu Daoyi, X1321p3b23; tr. Jinhua Jia)
"With sudden enlightenment to Tathagata Chan,
The six paramitas and myriad means are complete within that essence."
(Yongjia Xuanjue, T2014p395c14; tr. from "The Sword of Wisdom")