Blockchain//Besu//Automation

- Script idempotency: always start with a cleanup section to remove previous containers and networks.

Script idempotency: always start with a cleanup section to remove previous containers and networks.

.env file generation: script writes node keys and RPC URLs so the frontend auto-configures.

Bash vs TypeScript: bash scripts are simpler but less portable; TS libraries abstract OS differences.

node -e "..." pattern: inline JS execution from bash — keeps the script self-contained and portable.

Silent failures: never redirect stderr to /dev/null — hides critical errors like missing npm packages.