> Does standard library is stable for usage in the enterprise? No.
The "enterprise" had reluctantly transitioned from their legacy systems only because COBOL programmers were dying of old age. IBM / SAP / Oracle / etc were pushing Java, and Microsoft was pushing BASIC and C# (especially in colleges / tech schools), so that's what they invested in for the new generation of developers. After that generation dies off, maybe they'll try "new" hipster language like Python. Nim isn't for the "enterprise", which makes programming language choices based on how easy it would be to hire replacement programmers. At least not yet.
