This contract implements a game similar to Russian roulette called "Revolution Roulette," where two players bet ETH, take turns, and use items to affect the game's outcome. Players can win by reducing the opponent's health to zero, with game states and player stats tracked on-chain.

This contract interacts with the Chainlink network to request sports game data (creation and resolution) for betting purposes. Users can place bets on teams, and withdraw winnings if their team wins. It supports various sports and game statuses, and allows withdrawal of LINK tokens.

This contract is a decentralized exchange (DEX) for swapping between ETH and a specified ERC20 token (Balloons). It allows users to provide liquidity, earning liquidity provider tokens (LPTs) in return, and to swap tokens. It includes functions for initializing liquidity, pricing assets, adding/removing liquidity, and executing token swaps.

The "YourContract" smart contract allows setting and storing a string variable `purpose`. It emits an event `SetPurpose` when the `purpose` is updated. It can also receive and hold ETH with its payable fallback and receive functions.

This Ethereum smart contract allows users to set and update a public string variable named `purpose`. It emits an event `SetPurpose` with the sender's address and the new purpose whenever the `setPurpose` function is called, logging the change.

The `MultiSigFactory` contract deploys and indexes `MultiSigWallet` contracts. It allows creation of new multi-signature wallets with specified owners and a required number of signatures for transactions. It emits events for creation and owner setting, and provides functions to check the number of deployed wallets and retrieve their details.

The "ETHMan" contract is an ERC721Enumerable NFT that allows users to mint up to 1000 unique "ETH Man" tokens with randomized HSL color attributes and happiness based on the latest ETH price. It includes a price feed, on-chain SVG generation, and sends minting fees to a specified address.

The "YourContract" smart contract allows users to interact with it through a single function called `wave`. When a user calls `wave`, the contract emits an event named `Wave` that logs the sender's address. There are no other functions or state variables to manage any additional state or logic.

This contract allows changing a greeting message, tracking the number of changes, and distinguishing premium changes (with ETH sent). It emits events on greeting updates. Only the owner can withdraw contract's ETH balance.

The `SoulBoundNFTFactory` contract creates and manages upgradeable SoulBoundNFTs using OpenZeppelin's beacon pattern. It allows the owner to create a new `UpgradeableBeacon` with an initial NFT implementation and to deploy `BeaconProxy` instances for that beacon, initializing them with specific NFT metadata and ownership rules. It emits events for created beacons and proxies.

The "Ballot" contract implements a voting system with proposals. Voters can be given rights, delegate votes, and vote on proposals. The contract tallies votes, prevents double voting, and determines the winning proposal.

This contract is a decentralized exchange (DEX) for a single ETH-token pair. It allows users to swap ETH for tokens and vice versa, provide liquidity to earn fees, and withdraw their liquidity. It uses the constant product formula for pricing and emits events for swaps and liquidity changes.

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BuidlGuidl is a group of builders that build tools with Scaffold-ETH, meet & learn together. The goal is to empower builders to create resources and prototypes for the Ethereum ecosystem. This is a library of projects created by our members. Click on www.speedrunethereum.com in the links to start your BuidlGuidl journey