I'm trying to gauge interest in submitting a library to the review queue, It's an expression template library called Yap using C++14 and C++17 features, built on top of Hana. It does not work quite the same as Proto, though of course it covers the same problem domain. My goal for the library was to cover the Proto functionality (while allowing the user to write less code than she would have had to with Proto) plus more functionality made easier by the new language features. In the examples you will find nearly all of the Proto examples reproduced, each in a-bit-less to dramatically-less code. The only Proto examples that were left out were ones that are now trivial using Yap due to differences in design. Online docs: https://tzlaine.github.io/yap GiHub page: https://github.com/tzlaine/yap Zach