Imho it's only sort of a shitcoin. xDAI is bridged DAI (from ETH/MakerDAO) to the Gnosis Chain (formerly xDAI Chain). Ofc it's not as solid as BTC.

Looks like althea uses some shitcoin called xDia: https://blog.althea.net/altheafaq/#needtoknow

hopefully some day they'll see the light.. and switch to lightning

notmandatory

I'm not sure how they actually handle the money though.

bitcoin

Okay guys. Hear me out. Helium network, but with lightning.

Kasai

There's also althea.net 

I'm not sure how they actually handle the money though.