Option 1. Nice and smooth, requires the lowest amount of eye strain to comprehend.
I like the animation of option 5 and 6 but using npm exclusively is alienating. Maybe if we have npm, gem, composer, helm, etc; sure.
Your comment about eye strain makes sense actually, there's a lot of quick movement that makes your brain work hard.... interesting. Also yeah NPM could be a bit alienating now that you mention it...
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