Uncomplete Description
- Folder
alphahas the current development packages from themasterbranch - Folder
betahas the packages from the testing packages. Packages are fully developed, just under the development - Folder
previewhas the packages those are developed but are waiting for their dependencies to reach their same level. - Folder
releasehas the packages that are distributed to the OS.
source folder has all the packages from the default branch of their repositories. Same for alpha packages. The difference is that you can compile it yourself.