The file structure is incredibly simplistic and easy to understand. Separation of language files are encouraged, especially with the hybrid apps developed today using multiple frameworks and libraries.
Model and controllers are developed in
back >
app
Configurations and routing are in
back >
sys
Database structure for static databases and seeding
back >
db
and Composer libraries are kept in
back >
lib
All routed views are within
html >
pages
Dynamic views reside in
html >
template
Build your javascript in
js
And your CSS app in
css
and
NPM
library's are in
js > package.json