alchemist-buffer-windows.el

;; Display alchemist buffers always at the right side
;; Just change (side . right) with the position you would like 'bottom, 'top, 'right or 'left
;; Source: http://www.lunaryorn.com/2015/04/29/the-power-of-display-buffer-alist.html
(add-to-list 'display-buffer-alist
             `(,(rx bos (or "*alchemist test report*"
                            "*alchemist mix*"
                            "*alchemist help*"))
                    (display-buffer-reuse-window
                     display-buffer-in-side-window)
               (reusable-frames . visible)
               (side            . right)
               (window-width   . 0.5)))