The problem XDCSwap v3 solves

Currently the DeFi is quite limited on the XDC chain, and there are barely any DEXes.

The only one I know of is XSwap, but it's based on Uniswap v2 and hasn't been updated for quite some time. It is clear that the chain needs more recent tooling.

Sadly, due to lack of time I wasn't able to finish setting up the Uniswap interface.

Challenges I ran into

Quite a few actually:

• The prefixed addresses are a hassle to use with current EVM tooling
• Most tools around the testnet are broken, including the RPC (that constantly returned ECONNRESET, the web wallet (https://wallet.xinfin.network/) that couldn't connect to the RPC, broken links on https://www.apothem.network/#stats, where "Web Wallet" redirects to the inexistant https://wallet.apothem.network/), ...
• XDCPay doesn't seem to work
• Information was quite hard to find, around the current ecosystem, deployed projects, what the contract address of Wrapped XDC is, ...
• The XDC team joined the venue a bit late on Saturday so it was unclear what I should work on until there was less than 20 hours left.
• Public tooling like The Graph is missing, so I had to deploy that myself as well