The problem xycLoans solves

Flash loans are still a relatively new technology and developers are pioneering new use cases, but there already are well-known techniques that traders and developers use everyday to profit from market opportunities or save gas.
Below are some reasons why you might want to choose xycLoans, both as a trader/developer and as an investor.

1.Security
xycLoans is designed with the sole purpose of being a flash loans protocol. That is because it is built with lenders funds' security in mind, and wants to offer lenders the possibility to put liquidity in a simple and audited (we're working on this) protocol.

The fact that xycLoans doesn't depend on price oracles, doesn't have complex rewards schemas, doesn't implement a governance system (while still keeping the product decentralized), and is developed by trusted members among the Soroban community makes it a good option for more cautious investors that seek to provide liquidity in DeFi systems that are less prone to security risk.
2.0 Fees
xycLoans has no community token treasurery and no protocol fees (which in some DeFi projects go to developers and initial investors), which means that when you use xycLoans both as a borrower you are only paying the fees to lenders, and that lenders are receiving every single cent of the fees borrowers pay. This effictively makes for a protocol that has 0 fees.

Challenges I ran into

Given my new experience with Soroban , I do run into major challenges, the main one would probably be fixed point math and writting the test cases for pool contract.