Google Assistant has only had custom routines for a few months now, but it's made quite the impression, especially with the scheduled routines option that rolled out the ability to schedule routines so that they activate on a specific Google Assistant speaker at specific days and times. Scheduled, custom routines make Google Assistant my favorite alarm clock, but there's been a slight snag in using them the last two weeks. They weren't working on any Google Assistant speakers outside the Google Home line.

Updated September 14, 2018: Routines are working again; Continued Conversation is not Voice-activated and scheduled routines have begun working on third-party Google Assistant-powered speakers again for many users who reported the original problem on the Google Assistant Help Community. As a note when testing scheduled Routines on both of my third-party speakers, the first scheduled routines I tested with both speakers failed but every scheduled routine since has been working properly. Continued Conversation is still broken on third-party speakers, but at least Routines are working again.