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 Some might be discontinued, or solving a slightly different problem, but might be still relevant when researching alternatives.
 
 - https://getspk.io
+  - [TPC '21 talk about SPK, SPFS](https://youtu.be/muXdzewW-mg?t=1068) (make sure to wath Rez section earlier too)
 - https://github.com/PeregrineLabs/Ecosystem
 - https://github.com/themill/wiz
 - https://github.com/NixOS/nix