Ecosyste.ms: Packages
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
cocoapod.org "constraint-extension" keyword
KVConstraintKit 2.0.0
An impressive Auto layout DSL for iOS, tvOS & OSX written in pure.5 versions - Latest release: over 6 years ago - 91 stars on GitHub - 1 maintainer