I hate that they mentioned about ru.nix, published it on github for short time and then unpublished it[1].
I think they wanted to avoid having people build on it before they stabilize its interfaces, since they still had some big changes planned. As I understand it, the plan is supposedly still to publish it at some point.
I hope that if that's true, they publish it soon, because its design is very relevant to ongoing changes in the ecosystem, and it could be a useful reference point. :(
I don't think it is. The talk was a year ago and it still isn't available.
I created my own version, based on (I think they did that too) on NixOS modules system.
But I'm wondering how it compares.
Actually looking at https://gist.github.com/burke/72ca46c80e57a25907a75611ee5eb6... I think their goal is slightly different than mine.
There's also https://github.com/hercules-ci/project.nix but it wasn't touched for a year now.
EDIT: ah, you're probably talking about https://shopify.engineering/shipit-presents-how-shopify-uses...