You can compile directly in Remix without external dependencies. Copy code above, use 0.8.0 compiler
Click compile then go to deploy and run transactions.
better use rabby since sometimes metamask does not connect to Zenchain testnet but still try
click account then Deploy. Sign transaction after that go to Zentrace.io under deployment contract copy address paste then copy transaction hash. paste it on Zenquest
Complete the Quest.
Happy hunting.