An attempt to make my personal Atom Editor configuration as portable/repeatable as possible.
Making settings portable isn't straightforward at this point in time:
https://discuss.atom.io/t/is-there-a-method-to-import-export-settings/10616
So if you zipped up the contents of the ~/.atom directory, that would achieve what you're asking for. You might want to be a little selective about what you archived because some things that are stored in the ~/.atom directory aren't really meant to be transplanted ... say across versions of Atom.
Settings and packages are stored in the ~/.atom directory.
apm install react
apm install linter
apm install project-manager
apm install vim-mode