Needless to say normal people should not need to know anything about channel or liquidity management to use it. Much less have to know what gRPC or REST are...

Of course the problem with making it simple is that you have to trust the company providing the black box that is "keeping your money".

That's what open source software is for... and open source hardware I guess.

I imagine man-in-the-middle and supply chain attacks will be a big problem for the foreseeable future.

If they can blow up your pager, they can steal your coins.