1 . SET UP HARDHAT

1.1. Setup version nodejs + npm

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"

nvm install 22
nvm use 22
nvm alias default 22

node -v    # → v22.xx.x
npm -v     # → 10.xx.x

1.2. Go to here and clone repository GIthub zama with your github ( click Use this template" → "Create a new repository")

https://github.com/zama-ai/fhevm-hardhat-template

1.3. Clone your repo to your machine

git clone https://github.com/Apollo-Sync/fhevm-counter-demo.git
cd fhevm-counter-demo

1.4. INstall dependencies (you are here : Root/fhevm-counter-demo.git/)

npm install

1.5. setup MNEMONIC & INFURA (IF deploy on Sepolia)

npx hardhat vars set MNEMONIC

Paste your 12 seed phase EVM wallet --> enter

npx hardhat vars set INFURA_API_KEY

Paste your Infura API key --> enter

1.6 Check working

npx hardhat

if you see that , its oke to next step

Usage: hardhat [GLOBAL OPTIONS] task [TASK OPTIONS]

Available tasks:
  compile     Compile the entire project
  test        Run tests
  ...