Telescopes with fixed optics and mobile mirrors have been done. Mostly used for solar observation but they are few exceptions.

Most notably This telescope from Paris’s 1900 universal Exhibit . Poor scientific instruments but great party trick with focal length of 57 METERS !

Well due to the massive increase in end of life costs in the last decade his parents will have to sell to house in their last few year and the inheritance will vanish. Don’t worry we’ll all end up in the same place.

Apple sells usb-c to mini-jack adapters as well as lightning to mini-jack. A pain to have to pay for an adapter but it works quite well.