These programs are enumerated the same as the other smart contract subdirectories (e.g. solana).
Read the design documents for each example project:
Install Foundry tools, which include forge, anvil and cast CLI tools.
Simply run make to install the necessary dependencies and to build the smart contracts.
Run the Solidity-based unit tests with make unit-test and the local-validator integration tests via make integration-test, or simply make test to run both of of them.