Proton is open source as well. Free tiers are supplemented by subscribers. https://proton.me/support/proton-plans#proton-free

I’m actually in the market for a new tv and have been tempted to go the projector route, especially with the advancements in short throw projectors. However, I’m scared off by the fact that I would like to enjoy the same experience during the day as I would at night. My living room isn’t the ideal dark theater room…