Redspot is an Substrate pallet-contracts (ink!) development environment. Compile your contracts and run them on a different networks. Redspot's core forks from Hardhat but changed a lot to suit substrate.
npx --version
6.14.13
node -v
v14.17.0
npx redspot --version
0.10.1
cargo-contract --version
cargo-contract 0.12.1-unknown-x86_64-macos
npx redspot compile
Error RS608: The cargo contract should be installed correctly and the version should be at least v0.8.0.