Arthur Hayes announced on X that the FLOP development testnet (Devnet) is now open to builders. Developers can access test FLOP, browse blocks, and call verified inference services through their agents. Hayes cautioned that Devnet tokens hold no value, generate no rewards or airdrop weight, and the chain may be reset. No FLOP token exists yet; users are warned not to share mnemonic phrases and to verify information only through official links.