I was talking smack about Taro on Twitter a while back and a bot just today gave me a link to a Taro testnet wallet. It's, alright, it's not like... a16z money, (aka print-your-own-money) but it's alright, I mean, it's just a very simple front end.
Not sure what's going on behind the scenes, whether it's a Testnet Bitcoin blockchain with Testnet Bitcoin in a Testnet multisig lightning channels with Testnet assets swapped... you get the idea, or just nothing going on behind the scenes besides some code meant to emulate that. I guess if it's the first one, then it's basically ready for prime time. Cool.