replace panic to unreachable
replace panic to unreachable

 - remove error.UnsupportedOS from StreamServer.listen

raulgrell/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,zig-lang/zig,zig-lang/zig