no worries :). I plan on remaining on personal plus anyway until such time as you stop letting me give you money (making this the second plan you'll have kicked me off of :P), but there's not actually any difference between the (now) state of that and the free plan as far as I can tell. (also is the plural of Tailscalar Tailvector?)
nix & nixos are by far the worst way to manage system configuration, except for any other way that's been tried. imagine if there was something with declarative system configuration _not_ written in an insane undebuggable recursive nightmare of a language/stdlib? oh well, I'll keep using it, because what other options are there?
if an attacker is in the position to try to MITM TLS, they're in the position to just serve whatever they want on port 80 even if your server isn't doing that.
that is _purely_ netflix's decision; they have decided not to integrate. in fact, earlier this year netflix accidentally rolled out their internal version which has full integration with the APIs and then said "oopsie" and removed it again.
Good news for you, their local hub is available and I currently have fridge and freezer (and a few other sensors) hooked up to home assistant via it right now.
that's not mostly what car enthusiasts care about, especially somebody buying a 150k porsche; they care about handling and road feel and a fat pig of an EV will never match a lighter car (well set up) on that; you can't beat physics when you're slinging that much weight; even set up as well as can be, a 5000lb taycan doesn't come close to the handling feel of a 3250lb 911.