This week's book giveaway is in the Programmer Certification forum. We're giving away four copies of OCP Oracle Certified Professional Java SE 21 Developer Study Guide: Exam 1Z0-830 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
What is your definition of lean? Each of the components in the MEAN stack have been tried and tested through many a applications deployed to prodcution already. Also, to answer your question- Yes, the components of the MEAN stack can be replaced.
Mongo with Couch
Express with Hapi/Koa
Angular with Backbone/Ember
They weren't very bright, but they were very, very big. Ad contrast:
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