• Git submodules
  1. git submodule update --init
  2. git pull --recurse-submodules
  3. git submodule update --init --recursive
• https://book.getfoundry.sh/
  • curl -L https://foundry.paradigm.xyz | bash
• npm install

• Install Foundry
• Install Hardhat
• Init Hardhat
• Setup Hardhat typescript compatibility
• Install Hardhat add-ins

• References
• Looking at WH challenges <<<<<<< HEAD
• https://github.com/sigp/solidity-security-blog =======
• https://docs.avax.network/dapps/smart-contracts/using-foundry-with-the-avalanche-c-chain
• https://github.com/nicolasgarcia214/damn-vulnerable-defi-foundry

6702afd3d2b9646d77f615b7658992ad4784e446

1. Store.sol in progress
2. 02_Discounted.t.sol OK
3. 03_HeadOrTail.t.sol OK
4. 04_Vault.t.sol OK

• CallerCallee.sol: implements a Caller contract that calls a Callee contract (tests: Foundry & Hardhat).
• Reentancy.sol : implements a VulnerableVault with various ways to withdraw funds (transfer, send, call) and re-entrancy pattern vulnerability (tests: Foundry).

• receive vs fallback
• revert / out of gas
• on Coffers, automatic getter of public struct{ uint, mapping} only returns uint
• What does forge update do? foundry-rs/foundry#3720