1. DieselBoilerplate-free, zero-overhead Tagless Final / typed-final / Finally Tagless DSLs in Scala
2. SchwatcherFile-watching library for Scala. Built on Java 7's WatchService, RxScala and Akka actors.
3. MetascraperScala library for scraping metadata from specified URLs (e.g. OpenGraph)
4. EnumeratumA type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations.
5. RhodddoobieMy little sandbox for playing around with the FP + OOP + DDD combination, in particular using Rho, doobie, Docker, testing, etc in a project.
6. FrunkFunktional generic type-level programming in Rust: HList, Coproduct, Generic, LabelledGeneric, Validated, Monoid and friends.
8. push to devicesRuby-based ( Padrino / Sinatra ) server for pushing notifications to iOS and Android devices via Apple Push Notifications (APN) and Google Cloud Message (GCM) respectively.
9. rusqbinA server that stashes your requests for later retrieval so you can do end-to-end testing of code that makes HTTP calls. Available as a binary, a Docker image, and a library.
10. freASTFast, simple Free Monads using ScalaMeta macro annotations. Port of Freasy-Monad.