The problem Tau solves

Tau introduces a next-gen decentralized exchange providing liquidity, and enabling peer-to-peer transactions on the Flow network. Tau allows users to trade directly from their wallets rather than through a 3rd-party -- your tokens never leave your custody, and are 100% owned by you. Further, low trading fees and high liquidity makes Tau an attractive platform to trade with, and also helps provide a broad range of support to various facets of the Flow community -- to continuously adapt to the changing markets by continuing to provide value to both token holders and the community. Tau provides the following features:

1. High-efficiency swapping
2. Capital-efficient Lending & Borrowing Protocol
3. Secure Cross-chain Bridge

For more technical details, please read our GitHub repository.

Challenges I ran into

I was new to Cadence, having come from a primarily Solidity background, so it took me a while to near the ins and outs of the language. Once I did, it was a breeze through! Additionally, we ran into a lot of issues regarding deploying our contracts to the Flow network, however, we were able to mitigate this after contacting a member on Discord.