hyperbole @ Savannah: Installing Hyperbole from GNU-devel ELPA Packages

Installing the latest development version of Hyperbole

The latest development version of Hyperbole can be installed directly from the GNU-devel ELPA Packages using built-in Emacs Package Manager.

The Elpa GNU-devel package repository provides a development version of Hyperbole. It pulls from the latest Hyperbole development branch to get the tip version and makes an installable package.  This is done on a daily basis. Installing this does not require any new package manager software.  Since Hyperbole is a mature package, this version is usually fine to use and is updated on a day-to-day basis.  But new features are tested on this branch and once in awhile it may break for a short time before a fix is pushed.

To download and install this version of the Hyperbole, you should add the following lines to your personal Emacs initialization file, typically "~/.emacs". (For further details, see info page "(emacs)Init File", or Init-File).

(when (< emacs-major-version 27)
  (error "Hyperbole requires Emacs 27 or above; you are running version %d" emacs-major-version))
(require 'package)
(add-to-list 'package-archives '("gnu-devel" . "https://elpa.gnu.org/devel/"))
(unless (package-installed-p 'hyperbole)
  (package-refresh-contents)
  (package-install 'hyperbole))
(hyperbole-mode 1)

Now save the file and restart Emacs.  Hyperbole will then be downloaded and compiled for use with your version of Emacs; give it a minute or two. You may see a bunch of compilation warnings but these can be safely ignored.

Source: Planet GNU