Last I checked, Copperhead OS imploded. From Wikipedia:
On June 11th, 2018, Daniel Micay, the main developer of CopperheadOS, then-Chief Technology Officer and 50% stakeholder in a company, announced publicly that he had been cut off from the company in an e-mail sent to him by James Donaldson[7][8] with an order to turn over access to the subreddit and Micay’s Twitter account. Mr. Donaldson, representing the company, let Micay know that Micay would receive pay if he signed an employment agreement. On his Twitter, Micay wrote that Mr. Donaldson was attempting to seize Micay’s personal GPG key which was also used to secure key parts of the Copperhead Project.[9][10] Micay reportedly deleted those signing keys which were required to release updates to CopperheadOS.[11]
There might be a successor.