Building developer environment on my laptop too build an app

Iam participating in monday apps-hackathon challenge.
I want to start building my app but, i could not create development environment (mentioned in resources>build your apps) in my laptop
I mean i followed the same procedure,

But iam unable to get the link!!!
please help me to solve this problem!I feel much disappointed at the start itself due to this…
please help me!!!

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