FYI Thunderbird now natively supports PGP (and possibly WKD?) without the need for Enigmail.
Podcast Addict I really want to use AntennaPod, but I can’t do without priority podcasts.
Also Feedly. Feeder (FOSS) is so close, but doesn’t allow different sorts for different feeds.
Rights holders ≠ artists
There are a few PCB drones out there.
Most PCBs, even really cheap ones, are made from FR-4, which is a very robust fibreglass. It’s would be a pretty decent choice for drone components in general.
Not drones, but Carl Bugeja on YouTube makes some fascinating machines almost entirely out of PCBs (although he uses a lot of flex PCBs, not just FR-4).