If the nix package manager is installed, nix-shell will launch an environment where the native dependencies are all available.
Alternatively, they might be setup manually - running the commands should report missing dependencies in the error messages, but a list is also available in the environment setup.
Finally, yarn install will handle the Javascript and Solidity dependencies.
yarn compile compiles the contracts for both EVM and OVM.
yarn deploy deploys the contracts targeting OVM to the Kovan testnet and outputs the resulting transaction and created contract address:
deploying "ZNFT" (tx: 0xf718fe0e27068c0bfcce2c1aca82f463915f11592062bcf18c75aa5a824deec6)...: deployed at 0x9A9f2CCfdE556A7E9Ff0848998Aa4a0CFD8863AE with 6628783 gas
Loading this transaction in the Kovan block explorer confirms a contract was created on the deployed at address. Reading the contract address's storage confirms the owner field was indeed set to the transaction sender. e.g.
$ curl -XPOST --data '{"jsonrpc":"2.0","method":"eth_getStorageAt","params":["0x9A9f2CCfdE556A7E9Ff0848998Aa4a0CFD8863AE", "1", "latest"],"id":1}' -Hcontent-type:application/json https://kovan.optimism.io
{"jsonrpc":"2.0","id":1,"result":"0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266"}