If you can make a VPN connection to the school network, your Dell machine with Vue installed will be part of the school network, and you should be able to reach the rendercows. You'll have to install the rendercows on the school computers though. The main problem is not technical, but political - you'll have to get permission to install those rendercows, and you'll have to get permission to make a VPN connection to your school network.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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