Setting working environment

[Shymaa-Arafat]

I know I'm late, but which is easier & faster?
-To install docker on my mobile using this site
https://gist.github.com/FreddieOliveira/efe850df7ff3951cb62d74bd770dce27
-Or to setup the JS node working environment? I don't know where to start writing the code!
I see place for requests or methods that seems to fit only for one function
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What I understand is that I need something like any language editor ( or should I use GitHub itself? Didn't see anyone did that from the screenshots in discord?)
I mean, what I understand is that I should copy this template contract file you are providing, then write my coding steps as I understand them to finish to perform the required Liquidation?
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One last enquiry since I find in discord people are using mainnet, that's not real liquidation right?
I mean just to make sure we are not giving any real borrower a hard time here, right?
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Thanks