It distantly reminds me of e.g. Unity assets you have to pay for. Npm could become a Code marketplace. Problem would be that you would have to turn GitHub into a Code marketplace with it, otherwise another tool would emerge compying the code from GitHub. Also, some way would have to be found to prevent a simple clone of the code from being distributed freely... you cannot secure code using e.g. DRM
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It distantly reminds me of e.g. Unity assets you have to pay for. Npm could become a Code marketplace. Problem would be that you would have to turn GitHub into a Code marketplace with it, otherwise another tool would emerge compying the code from GitHub. Also, some way would have to be found to prevent a simple clone of the code from being distributed freely... you cannot secure code using e.g. DRM