The author of this web content shares their experience with using Swift, a general-purpose programming language, to create an experimental ActivityPub server. They explain that Swift is not commonly chosen for running projects on Linux, which made it interesting for them. However, they encountered some issues during the development process, including compilation errors and concerns about outdated or vulnerable code dependencies. The author also highlights the surprising occurrence where the server does not stop running when commanded to do so, except through a manual kill command. They eventually give up due to a compiler error, but overall found working with Swift to be fairly pleasant and straightforward.
https://flak.tedunangst.com/post/an-aborted-experiment-with-server-swift