“Standard” folder system

From here.

• src/: “source” files to build and develop the project. This is where the original source files are located, before being compiled into fewer files to dist/, public/ or build/.

• dist/: “distribution”, the compiled code/library, also named public/ or build/. The files meant for production or public use are usually located here.

• assets/: static content like images, video, audio, fonts etc.

• lib/: external dependencies (when included directly).

• test/: the project’s tests scripts, mocks, etc.

• node_modules/: includes libraries and dependencies for JS packages, used by Npm.

• vendor/: includes libraries and dependencies for PHP packages, used by Composer.

• bin/: files that get added to your PATH when installed.

The folders used often are src/, dist/, assets/ and bin/.