Talisman dev Kheops has drafted a front-end for Asset Hub swaps using the polkadot-api. You can check it out at https://kheopswap.pages.dev/swap.
Asset Hub pools are very low on liquidity, so expect a large price impact.
At Protocol Berg on June 12th, Bastian Köcher (Parity) presented an overview of CorePlay, described as an actor-like framework for blockchains built on top of JAM.
