old removed branch memo

[xuwei-k]

• https://github.com/atnos-org/eff/tree/79fe45e865ac75f3d83b093c95ce481dce9102b3 add-fs2-support
• https://github.com/atnos-org/eff/tree/36e14384d195a1cc1505faf5798ae42bb7616b21 concrete-async
• https://github.com/atnos-org/eff/tree/33121e055579ef7ca848c8be7f3c6e693d290b49 monix-async-boundaries
• https://github.com/atnos-org/eff/tree/efcf8f493909e9bf177d73157d2e076e47fdec7d safer-applicative
• https://github.com/atnos-org/eff/tree/7aa4c0d4ce58a464931cd81e98813824ff269638 scheduler-for-timeouts
• https://github.com/atnos-org/eff/tree/8e64b1d72878c67b404c7ccfefdd2e3d37eaa7a5 state-nat-implicits
• https://github.com/atnos-org/eff/tree/3dc0ea9d1d9d51f844bad8f069a4101c90d4b727 topic/applicative
• https://github.com/atnos-org/eff/tree/5c9b718d168bcc419c777f5f90b7d1da11fbb0c9 topic/generators
• https://github.com/atnos-org/eff/tree/464eb9996496cda755a1adb4742d42c2b577cc4b topic/lazy-state
• https://github.com/atnos-org/eff/tree/b35506a6d6f4578f7207324398f8ef908ebea609 topic/matchresult-effects
• https://github.com/atnos-org/eff/tree/6f59f5b09470f276db40dd3a061817c401452f80 topic/real-world-example
• https://github.com/atnos-org/eff/tree/5c01339ab96a3d61b892771a60e4c2c6d976b638 topic/tangent-run-with-member-only
• https://github.com/atnos-org/eff/tree/a8cca015f9ae76b77f97984da7a727bfbb057937 topic/tut-to-specs2
• https://github.com/atnos-org/eff/tree/eb291f8e69de1d33589ce4d529a9c92224313569 topic/tutorial