Theya Multisig Wallet Is Now In Public Beta

"The general launch will only become available after a vault architecture and key management audit is completed in collaboration with a reputable security firm."

https://www.nobsbitcoin.com/theya-multisig-wallet-now-in-public-beta/ 

 nice !  tested chrome extn mainnet or testnet multisig also 

 Is it open source though 🧐