score:2
Accepted answer
if you look at build.sbt
of http4s you'll see that many of http4s libraries use jetty as the underlying implementation. for instance http4s-jetty which you most likely use.
so no, you don't have to download jetty or any other container. if you wanted to make your code require a container you would most likely have to add some extra effort.
Source: stackoverflow.com
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