add a minimal config for emacs

Otherwise org-ref doesn't work which leads to broken references

general/thesis.el

@@ -0,0 +1,36 @@
+;; Added by Package.el.  This must come before configurations of
+;; installed packages.  Don't delete this line.  If you don't want it,
+;; just comment it out by adding a semicolon to the start of the line.
+;; You may delete these explanatory comments.
+(package-initialize)
+(setq vc-follow-symlinks t);; always follow symlinks
+
+;; keep customize settings in their own file
+(setq custom-file "~/.emacs.d/custom.el")
+(when (file-exists-p custom-file)
+    (load custom-file))
+
+(require 'org)
+
+(add-to-list 'package-archives
+    '("melpa" . "https://melpa.org/packages/"))
+(when (< emacs-major-version 24)
+    ;; For important compatibility libraries like cl-lib
+    (add-to-list 'package-archives
+        '("gnu" . "https://elpa.gnu.org/packages/")))
+
+(unless (package-installed-p 'use-package)
+        (package-refresh-contents)
+        (package-install 'use-package))
+
+(require 'use-package)
+(use-package use-package-ensure-system-package
+    :ensure t)
+
+(use-package org-ref
+    :ensure t
+    :after org
+    :init
+    (setq org-ref-completion-library 'org-ref-ivy-cite)
+    :config
+    (setq org-ref-default-citation-link "footcite"))

projekthandbuch/Makefile

@@ -68,5 +68,5 @@ pictures/%.svg: pictures/%.puml
 	java -jar ~/bin/plantuml.jar -tsvg $<
 
 projekthandbuch.tex: projekthandbuch.org
-	emacs -l ~/.emacs.d/init.el --batch \
+	emacs -l general/thesis.el --batch \
 	--eval="(progn (find-file \"projekthandbuch.org\") (org-latex-export-to-latex nil nil nil t))"