Can you get a mortgage with Crypto as collateral?

Can anyone actually secure a mortgage using cryptocurrency as collateral? It seems like a rather unconventional approach to traditional lending practices. Are there any institutions or banks that are willing to accept digital assets as security for a home loan? If so, how does the process work? What kind of risks are involved for both the borrower and the lender? And would the value of the cryptocurrency be locked in at the time of the loan agreement, or would it fluctuate with the market? Clarifying these questions would help determine if crypto-backed mortgages are a viable option for those looking to finance their real estate purchases.