GR8 Hackathon Results
The GitCoin GR8 hackathon was held in December 2020, with judging completed on Jan 4 2021. xDai sponsored bounties for applications deploying to xDai. We received 7 excellent submissions and chose 3 winners based on Usefulness, Creativity, Usability, and a working Demo. Judges included members of xDai, StakeHaus and Raidguild. For more details about the hackathon, see https://gitcoin.co/issue/xdaichain/site/9/100024347.

Winners:

1)
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Crosschain Arbitrage Graph by @makoto_inoue ​

The Crosschain Arbitrage Graph gives users data they need to find arbitrage opportunities and view historical price margins of ERC20s between HoneySwap on xDai and Uniswap on Mainnet.

2)
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Smart Giveaway by @dimahledba​

The Smart Giveaway platform lets users setup a customizable twitter giveaway then selects a random winner using on-chain POSDAO random number generation. The platform includes a robust UI along with the ability to interact with the randomAura contract on xDai.

3)
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Buck Social by @LucasMoskun​

Buck Social is a simple $1 dollar betting platform built on xDai where users can verifiably "shake" on a bet. A notification system was added to the platform to increase usability. Users can add comments about bets, and are informed about new bets and bet status updates.
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