Sounds like you have qmail at the root. I ran that with spamassassin, barracuda and some other custom rules for years. Didn’t add on the auto response you have described, but really liked it back in the day.

Did I guess kinda close to what you have running?

I’d think the annoying part would be that you’ve forced the work to prove they are human back on the sender. Might be a good way to go though given how much spam there is.

Don’t know if it was against usage terms, but I have been able to get chatgpt answers written ‘in the style of’ various subreddits since the initial release (or perhaps the second release)

There are aftermarket options to support screen mirroring over usb, so I think it is possible. Is anyone else putting in the work to compete with Google and Apple? I’ve been watching as Google ads integration to various cars - as an example they didn’t show turn by turn directions on the screen behind the steering wheel a while ago, and added it on Honda at some point. These features take investment, and perhaps the OSS options aren’t keeping up?