I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
Have a look at the following image, which demonstrates the minimalistic design approach
I'd say that example wasn't particularly minimalistic (as in using any of the principles of minimalism) and it's also fairly confused. At a cursory glance, it has navigation items or buttons on the top, left, right and bottom of the viewport, a search area in the middle which has the wind taken from its sails by the fact it's a single horizontal line and there are other lines on the screen which may or may not be purely decorative. Since the image background fills the display isn't unclear whether this is an app-like interface or the top of a website you can scroll down.
I'm not wanting to take away from the rest of your post, but I think if you want an example of something simple you could find better!
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I'd say that example wasn't particularly minimalistic (as in using any of the principles of minimalism) and it's also fairly confused. At a cursory glance, it has navigation items or buttons on the top, left, right and bottom of the viewport, a search area in the middle which has the wind taken from its sails by the fact it's a single horizontal line and there are other lines on the screen which may or may not be purely decorative. Since the image background fills the display isn't unclear whether this is an app-like interface or the top of a website you can scroll down.
I'm not wanting to take away from the rest of your post, but I think if you want an example of something simple you could find better!