I haven't finished listening to the podcast yet, but he seems to be working on his own project called DarkFi. I am going to assume a token is involved. The beginning of the podcast was semi-interesting, talking about his experience with the Bitcoin Core devs in the early days. This discussion was brought up when mentioning the private chat application he has built. He really speaks badly about Bitcoin Core and the state of Bitcoin throughout, though. I honestly think he only took a look at Nostr for less than a couple of minutes and got turned off by it because it was recommended to him by so many Bitcoin maxis.