internal directory is the place to put your private libraries (e.g.,
your_project/internal/pkg/your_private_lib) and the application code you don’t want others to import (e.g.,
your_project/internal/app/your_app). When you put all of you private code in the ‘internal’ directory the application code in the
cmd directory will be limited to small files that define the ‘main’ function for the corresponding application binaries. Everything else will be imported from the
The critical feedback didn’t stop Apple from moving the industry forward. Shortly after launch, the first version of the Apple Watch became the bestselling smartwatch of all time. With the announcement of Series 3, Tim Cook went a step further and clarified Apple Watch’s position within the watch industry once and for all.