Isn't this like browsing any website? Each instance is a website. Browsing the website will give them your IP address. You can see, that the current content ist coming from another instance by checking the name (though I don't know if every app shows the instance in that way). And as Lemmy is a Link aggregator (to my knowledge) it will provide links.
But of course we can discuss if lemmy instances should proxy all interactions with other instances. Coming with its own problems.
I listen to audiobooks a lot, but mostly (like 95% of the time) I`m only listening to books that I've read as book previously. I love to dive back into these beloved stories again without needing to put in the extra time for reading them again. I hear them for example when I'm walking my dog (which is already like 1,5h each day).
I guess you have some kind of linux based system of your home server. The USB connection to the printer will create a Serial Interface in your system under /dev. How it is called depends on the USB chip used in your printer, but often this is something like ttyUSB0.
So when connecting the printer you get the device file /dev/ttyUSB0 (or similar) on your home server (yes, the Serial interface is just a special file on that level). You can now mount this device file into the docker container like any other hostfile via the volume option.
Like docker run -v /dev/ttyUSB0:/dev/ttyUSB0 octoprint or by using the volumes key for your octoprint service in the docker-compose file, providing the same string as in the docker run command.
I think that should work, though I haven't tested it.
Users will keep their exisiting email addresses on this service, and would get it free for the first year. After that, there will be options of paying for a service, or an ad-based free service after that.
So basically nothing will really change besides that users of the free tier will be shown ads now? Ads, that they would also see on other free email providers? I don't see a reason, why they need to move. Or is that only that one provider?
From all the shitty moves, that companies and especially ISPs do, this is the least shitty one.
The average user only uses what is already in their devices or very easily obtained and already known by them. On PCs you got Windows and Microsoft of course pushes their products (Edge, MS Office, OneDrive,...). On Smartphones you have Apple and Google controlling the devices way more than with PCs and being Gatekeepers through their appstores and preinstalled apps. Why would the average user try to research to find FOSS alternatives in that big pile of proprietary and monetized apps or jump through hoops to actually use them (keeping things FOSS is not easy on smartphone due to policies from google and apple)? The big players are controlling the market and they try to only allow FOSS when it benefits them.