You can now (sort of) use Android Wear 2.0's complications on a Wear 1.0 device
The original Moto 360 is one of the best devices left behind in the transition to Android Wear 2.0
Ultimately, the developer aims to make porting complications built for Wear 2.0 a matter of simply replacing two lines of code, which, unfortunately, means developers will have to explicitly choose to support the unofficial feature. Still, even if the implementation will never be an official-grade one, it's still great knowing that there's a community of enthusiasts out there which hasn't yet abandoned the platform.
source: reddit via XDA Developers
Things that are NOT allowed: