HomePod and HomePod mini will be available in Singapore starting April 6.
Apple Newsroom: Apple introduces HomePod and HomePod mini in Singapore
Reference: HomePod and HomePod Mini Launching in Singapore Next Month
Recommendations
Developer:
Refresh AirPlay programming essentials, consider checking SiriKit Cloud Media programming.QA engineer:
Consider adding test scenarios that involve HomePod.PM/DM:
Expect more people having HomePods in Singapore, using Siri with HomePods, using more streaming services via HomePod.