Nexus Phase 3 Testnet, if you have idle machines, I suggest you give it a try. I saw Anzi's tutorial yesterday and tested it out; it is quite memory-intensive!!
CLI Quick Tutorial: https://x.com/Nazarick_eth/status/1937312295782350977
Currently, the total number of nodes has exceeded 2 million, with over 500,000 active nodes!!
By the way, I checked the price of $NEX on the idle exchange, which is basically around 0.05R each!