package-archives

package-archives is a variable defined in `package.el'.
Its value is

(("gnu" . "http://elpa.gnu.org/packages/"))

• This variable may be risky if used as a file-local variable.

Documentation:
An alist of archives from which to fetch.
The default value points to the GNU Emacs package repository.

Each element has the form (ID . LOCATION).
ID is an archive name, as a string.
LOCATION specifies the base location for the archive.
If it starts with "http:", it is treated as a HTTP URL;
otherwise it should be an absolute directory name.
(Other types of URL are currently not supported.)

Only add locations that you trust, since fetching and installing
a package can run arbitrary code.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.