BTC <> XMR Atomic Swaps
The ability to swap BTC for Monero through atomic swaps is here, according the the Monero website, getmonero.org:
They reference the following library:
Swapping BTC for XMR is useful for at least two reasons:
BTC can be dirty, and users routinely need to "clean" their BTC wallets by swapping BTC for XMR and back again
XMR is currenly in a major uptrend against XMR, and many will likely continue swapping BTC for XMR without desiring a swap back.
I propose that Citadel add XMR wallets and look at the feasibility of adding atomic swaps within app.citadel.one