https://dotty.epfl.ch/docs/

https://www.reddit.com/r/scala/comments/3nd4cr/dotty_exploring_the_future_of_scala/
http://scalaworld2015.d-d.me/#/

articles
2018
https://github.com/dotty-staging/dotty/blob/add-transparent/docs/docs/typelevel.md
https://habrahabr.ru/post/330112/

presentations
2019
Travis Brown - Library Design for Dotty
    https://meta.plasm.us/slides/circe/dotty-preview/#1
    https://vimeo.com/353579169
Yuriy Vishnevskyi at #ScalaUA - Deriving a Functor in Dotty
    https://www.youtube.com/watch?v=kyWg70EyL_c
2017
Petrashko - Dotty is coming
    https://www.youtube.com/watch?v=APUmcQM1IpU