To install neo4j you'll need to download it first. Once downloaded you can follow the instructions in the video to get started.
If you'd like to fetch these files programmatically you can do so via:
wget https://calmcode.io/datasets/nodes.csv wget https://calmcode.io/datasets/dependencies.csv
If you'd like to confirm if you placed the files in the correct location you can do so by checking if the following query runs.
LOAD CSV WITH HEADERS FROM 'file:///nodes.csv' AS line RETURN line LIMIT 10