I had a similar idea where devices are all just a bunch of input and output devices that declar themselves via zeroconf on wifi/5G. And you can have a portal on your PC where you choose which software to use one which device and control it all from there.
Every month or so, they would make a video about the ongoing projects and show what kind of features are already available. Partner with manufacturer companies that can provide pre-assembled systems. For those that don't care about the DIY part, offer a subscription-based option where they can get early review units, prioritize their change requests, troubleshoot support, personalization options, discounts for bulk buys, etc.
The revenue from these subscriptions should be more than enough to fund the team of open source developers/designers and to make up for the "lost" revenue of a video made that is sponsored by any of the big tech companies. The most interesting though would be to see if this could lead to a change in consumer demand: could an influencer changed the public's perception of what is really "hot"? Would we start seeing things like "/r/mechanicalkeyboards" for all sorts of products like TV panels, wireless speakers, home automation light systems, F/OSS-based smartphones?