Moving source code to src/pkg/app directory about goddd HOT 2 OPEN

I'm on the fence on this, I'm not a huge fan of the pkg directory due to the extra level of indirection. Your arguments are valid though, so I would open this up for discussion.

from goddd.

mattermost Have a pretty neat app structure that follows DDD principles (I guess you can say that it also follows the clean architecture).
They have a model directory, it contains lots of file, that if would have been in the in the top level of the folder structure hierarchy would confuse you, and make you search for the README.md, or anything else that is related to the distribution of the project.

An even better name to what i proposed would be like in the project of Mattermost, to name the directory that holds all of the domain layer files, "model".
Descriptive name of what it contains and leave the first directory clean of confustion.

from goddd.