Generate static templates with unminified code.

[Ashapola]

Is this possible to use Next as template html generator?
I know can generate full static site but generated code is useless for me cause is minified.
My current system uses standard HTML JS Grunt + mock data to create templates which are retrieved from repo by backed team. Pages are managed later and deliver on production site by backend team.
I would like to use modern tools to create such static templates.
I tried to turn off webpack optimization in next.config.js file but it doesn't work.