You might then have a look at the video in this tweet (it is missing a little bit the reference that the Visual Studio Code extension is originally made by others and that Swift on Windows is an older thing in the making, but I attribute this to the enthusiastic style of Hursh Agrawal).
You may also have a look at the tweets of Steve Kirbach.
The videos by The Browser Company are generally fun to watch, but they also seem really serious about what they are doing. A big win for the Swift community! And also for Saleem Abdulrasool, who can devote much more time for something he seems to be enthusiastic about. Congratulations! 
Update: How we're building the Arc Windows app with *Swift* - YouTube