first cut at a Jahresbericht document class; for now:

• similar to teckids2pubmat (DIN A4, etc.)
• embeds tikz, tikzscale, pgfplots, filecontents
• defaults to CC-BY-SA 3.0 (DE) or later
• new command \teckidsjahresberichthdr{year1}{year2}%

more changes tbd later

teckids2jahresbericht.cls

+% Dokumentklasse „Jahresbericht 2.0“ für den Teckids e.V.
+%
+% Copyright © 2018
+%	mirabilos <thorsten.glaser@teckids.org>
+%
+% Provided that these terms and disclaimer and all copyright notices
+% are retained or reproduced in an accompanying document, permission
+% is granted to deal in this work without restriction, including un‐
+% limited rights to use, publicly perform, distribute, sell, modify,
+% merge, give away, or sublicence.
+%
+% This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
+% the utmost extent permitted by applicable law, neither express nor
+% implied; without malicious intent or gross negligence. In no event
+% may a licensor, author or contributor be held liable for indirect,
+% direct, other damage, loss, or other issues arising in any way out
+% of dealing in the work, even if advised of the possibility of such
+% damage or existence of a defect, except proven that it results out
+% of said person’s immediate fault when using the work as intended.
+
+\NeedsTeXFormat{LaTeX2e}%
+\ProvidesClass{teckids2jahresbericht}[2018/08/12 0.1 Teckids Jahresbericht class]%
+
+\PassOptionsToPackage{paper=a4}{typearea}%
+\RequirePackage{fancyhdr}%
+\LoadClass{scrartcl}%
+\RequirePackage{teckids2style}%
+
+\RequirePackage{tikz}%
+\RequirePackage{tikzscale}%
+\RequirePackage{pgfplots}%
+\RequirePackage{filecontents}%
+
+% default licence for Jahresbericht is CC-BY-SA 3.0 or newer
+\dokumentLizenzCCBYSAthreeDE%
+
+\newcommand{\teckidsjahresberichthdr}[2]{%
+ \teckidshdr[#2]{Jahresbericht #1/#2 des Teckids e.V.}%
+ % overrides from the default style
+ \fancyfoot[C]{\leavevmode\usekomafont{pageheadfoot}{\footnotesize%
+  \dokumentLizenztext%
+ }}%
+}%