Sui co-founders are starting a 'side hustle,' but this time it's not about creating another Coinbase. Havenex is targeting the crypto infrastructure business behind banks, asset management firms, and family offices, offering institutions a bundled solution for wallets, custody, trading, compliance, and risk control. They're currently pushing for Series A funding and an EU MiCA license, with Sui's two co-founders directly joining the supervisory board.