Updated: October 3, 2023
It's been some time since the shutdown of Skynet Labs and this guide no longer serves a purpose so it was updated to reflect this reality.
Idea of Skynet prevails in the form of two projects heavily inspired by it.
S5 by redsolver - content addressed storage network (similar to IPFS and using many of its formats and standards) that utilizes multiple storage solutions, including Sia, to allow creation of apps like Vup from the same author Lume by pcfreak30 - P2P network (similar to BitTorrent), storage portal, and end-user gateway, but ready to service the Web3, intending to bridge the gap between various technologies and using Sia as its storage layer