No it honestly just works. You select your airplay pane and the speaker shows up like it would at home.
Iirc you may need to go into your homekit settings for that speaker and allow connections from anyone before you leave your home network. Additionally you can set a passcode so you don't wake up to Dre blasting in your hotel room at 2am because someone decides to troll you.
I can't access mine to verify here at work remotely to confirm my connection settings.
::EDIT::
IIRC when you take the HomePod away, it needs to be set to allow access to Everyone. You can then add the security password as described in this screenshot if you want to prevent just anyone from taking over your HomePod.
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The best HomePod tips and tricks for making Siri even more useful
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