Oh my git

.gitignore

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+presi.pdf
+.envrc
+
+## Core latex/pdflatex auxiliary files:
+*.aux
+*.lof
+*.log
+*.lot
+*.fls
+*.out
+*.toc
+*.fmt
+*.fot
+*.cb
+*.cb2
+.*.lb
+
+## Intermediate documents:
+*.dvi
+*.xdv
+*-converted-to.*
+# these rules might exclude image files for figures etc.
+# *.ps
+# *.eps
+# *.pdf
+
+## Generated if empty string is given at "Please type another file name for output:"
+.pdf
+
+## Bibliography auxiliary files (bibtex/biblatex/biber):
+*.bbl
+*.bcf
+*.blg
+*-blx.aux
+*-blx.bib
+*.run.xml
+
+## Build tool auxiliary files:
+*.fdb_latexmk
+*.synctex
+*.synctex(busy)
+*.synctex.gz
+*.synctex.gz(busy)
+*.pdfsync
+
+## Build tool directories for auxiliary files
+# latexrun
+latex.out/
+
+## Auxiliary and intermediate files from other packages:
+# algorithms
+*.alg
+*.loa
+
+# achemso
+acs-*.bib
+
+# amsthm
+*.thm
+
+# beamer
+*.nav
+*.pre
+*.snm
+*.vrb
+
+# changes
+*.soc
+
+# comment
+*.cut
+
+# cprotect
+*.cpt
+
+# elsarticle (documentclass of Elsevier journals)
+*.spl
+
+# endnotes
+*.ent
+
+# fixme
+*.lox
+
+# feynmf/feynmp
+*.mf
+*.mp
+*.t[1-9]
+*.t[1-9][0-9]
+*.tfm
+
+#(r)(e)ledmac/(r)(e)ledpar
+*.end
+*.?end
+*.[1-9]
+*.[1-9][0-9]
+*.[1-9][0-9][0-9]
+*.[1-9]R
+*.[1-9][0-9]R
+*.[1-9][0-9][0-9]R
+*.eledsec[1-9]
+*.eledsec[1-9]R
+*.eledsec[1-9][0-9]
+*.eledsec[1-9][0-9]R
+*.eledsec[1-9][0-9][0-9]
+*.eledsec[1-9][0-9][0-9]R
+
+# glossaries
+*.acn
+*.acr
+*.glg
+*.glo
+*.gls
+*.glsdefs
+
+# gnuplottex
+*-gnuplottex-*
+
+# gregoriotex
+*.gaux
+*.gtex
+
+# htlatex
+*.4ct
+*.4tc
+*.idv
+*.lg
+*.trc
+*.xref
+
+# hyperref
+*.brf
+
+# knitr
+*-concordance.tex
+# TODO Comment the next line if you want to keep your tikz graphics files
+#*.tikz
+#*-tikzDictionary
+
+# listings
+*.lol
+
+# makeidx
+*.idx
+*.ilg
+*.ind
+*.ist
+
+# minitoc
+*.maf
+*.mlf
+*.mlt
+*.mtc[0-9]*
+*.slf[0-9]*
+*.slt[0-9]*
+*.stc[0-9]*
+
+# minted
+_minted*
+*.pyg
+
+# morewrites
+*.mw
+
+# nomencl
+*.nlg
+*.nlo
+*.nls
+
+# pax
+*.pax
+
+# pdfpcnotes
+*.pdfpc
+
+# sagetex
+*.sagetex.sage
+*.sagetex.py
+*.sagetex.scmd
+
+# scrwfile
+*.wrt
+
+# sympy
+*.sout
+*.sympy
+sympy-plots-for-*.tex/
+
+# pdfcomment
+*.upa
+*.upb
+
+# pythontex
+*.pytxcode
+pythontex-files-*/
+
+# tcolorbox
+*.listing
+
+# thmtools
+*.loe
+
+# TikZ & PGF
+*.dpth
+*.md5
+*.auxlock
+
+# todonotes
+*.tdo
+
+# vhistory
+*.hst
+*.ver
+
+# easy-todo
+*.lod
+
+# xcolor
+*.xcp
+
+# xmpincl
+*.xmpi
+
+# xindy
+*.xdy
+
+# xypic precompiled matrices
+*.xyc
+
+# endfloat
+*.ttt
+*.fff
+
+# Latexian
+TSWLatexianTemp*
+
+## Editors:
+# WinEdt
+*.bak
+*.sav
+
+# Texpad
+.texpadtmp
+
+# LyX
+*.lyx~
+
+# Kile
+*.backup
+
+# KBibTeX
+*~[0-9]*
+
+# auto folder when using emacs and auctex
+./auto/*
+*.el
+
+# expex forward references with \gathertags
+*-tags.tex
+
+# standalone packages
+*.sta

Makefile

@@ -0,0 +1,33 @@
+.PHONY: all watch check clean
+
+src = \
+      presi.tex \
+      presi.bib \
+      $(wildcard *.tex) \
+      $(wildcard figures/*) \
+      $(wildcard listings/*)
+
+latexmkopts = \
+	-pdflua \
+	-shell-escape \
+	-use-make \
+	-synctex=1 \
+	-interaction=nonstopmode \
+	-file-line-error
+
+all: presi.pdf
+
+presi.pdf: $(src)
+	latexmk $(latexmkopts) \
+		-Werror \
+		presi.tex
+
+watch: $(src)
+	latexmk $(latexmkopts) \
+		-pvc \
+		-view=none \
+		presi.tex
+
+clean:
+	latexmk -c presi.tex
+	rm -fR presi.pdf

presi.tex

@@ -0,0 +1,609 @@
+\year=2021
+\month=9
+\day=14
+
+\documentclass[aspectratio=1610,xcolor=dvipsnames]{beamer}
+
+\usepackage{pgfplots}
+\pgfplotsset{compat=1.17}
+
+\usepackage{fontspec}
+\usepackage{polyglossia}
+\setdefaultlanguage{german}
+
+\usepackage[font=scriptsize]{caption}
+
+\usepackage{fontawesome}
+
+\usepackage{graphicx}
+\usepackage{tikzfig}
+\usetikzlibrary{positioning}
+\graphicspath{{./figures/}}
+
+\usepackage{csquotes}
+\usepackage{fancyvrb}
+
+\usepackage[                                                                                                                                             
+        backend=biber,
+        style=verbose-ibid,
+        block=ragged,
+]{biblatex}
+\addbibresource{presi.bib}
+
+\usecolortheme{seahorse}
+\setbeamerfont{footnote}{size=\tiny}
+
+\usepackage{minted}                                                                                                                                      
+\usemintedstyle{friendly}
+\setminted{
+	baselinestretch=1,
+	breaklines=true,
+	autogobble=true,
+	bgcolor=lightgray!50,
+}
+
+\newmintinline[x]{console}{}
+
+\colorlet{bgl}{cyan!50!lightgray!50}
+\colorlet{bgr}{orange!50!lightgray!50}
+
+\title{Git SCM}
+\subtitle{Crash-Course in Versionsverwaltung and kolaborativem bearbeiten von Textdateien}
+
+\author{Dustin Frisch\\
+        Fachbereich Angewandte Informatik\\
+        Hochschule Fulda\\
+        Fulda, Deutschland\\
+        E-Mail: {\tt dustin.frisch@ai.hs-fulda.de}}
+
+\begin{document}
+
+\frame{\titlepage}
+
+\begin{frame}{Agenda}
+\tableofcontents
+\end{frame}
+
+\section{Was soll das alles?}
+
+\begin{frame}{Was ist Versionverwaltung?}
+	\begin{columns}[t]
+		\begin{column}{0.5\textwidth}
+			\centering
+			\large{Ohne Versionverwaltung}
+			
+			\begin{figure}[H]
+			\begin{tikzpicture}[]
+				\tikzstyle{state}+=[circle, draw=cyan!60, fill=cyan!5, very thick, minimum size=2.5em]
+				\tikzstyle{file}+=[rectangle, draw=green!60, fill=green!5, very thick, minimum size=2.5em]
+				\tikzstyle{update}+=[->, thick, dotted]
+				\tikzstyle{save}+=[->, thick]
+
+				\node[state](s1){+A};
+				\node[state](s2)[right=1em of s1]{+B};
+				\node[state](s3)[right=1em of s2]{-A};
+				\node[state](s4)[right=1em of s3]{+C};
+
+				\node[file](f) at (2,-3) {$doc$};
+
+				\draw[update] (s1.east) -- (s2.west);
+				\draw[update] (s2.east) -- (s3.west);
+				\draw[update] (s3.east) -- (s4.west);
+				
+				\draw[save] (s1.south) -- ([xshift=-0.9em] f.north);
+				\draw[save] (s2.south) -- ([xshift=-0.3em] f.north);
+				\draw[save] (s3.south) -- ([xshift=0.3em] f.north);
+				\draw[save] (s4.south) -- ([xshift=0.9em] f.north);
+			\end{tikzpicture}
+			\end{figure}
+		\end{column}
+		\begin{column}{0.5\textwidth}
+			\centering
+			\large{Mit Versionverwaltung}
+			
+			\begin{figure}[H]
+			\begin{tikzpicture}[]
+				\tikzstyle{state}+=[circle, draw=cyan!60, fill=cyan!5, very thick, minimum size=2.5em]
+				\tikzstyle{file}+=[rectangle, draw=green!60, fill=green!5, very thick, minimum size=2.5em]
+				\tikzstyle{update}+=[->, thick, dotted]
+				\tikzstyle{save}+=[->, thick]
+
+				\node[state](s1){+A};
+				\node[state](s2)[right=1em of s1]{+B};
+				\node[state](s3)[right=1em of s2]{-A};
+				\node[state](s4)[right=1em of s3]{+C};
+
+				\node[file](f1)[below=2 of s1]{$doc_1$};
+				\node[file](f2)[below=2 of s2]{$doc_2$};
+				\node[file](f3)[below=2 of s3]{$doc_3$};
+				\node[file](f4)[below=2 of s4]{$doc_4$};
+
+				\draw[update] (s1.east) -- (s2.west);
+				\draw[update] (s2.east) -- (s3.west);
+				\draw[update] (s3.east) -- (s4.west);
+				
+				\draw[save] (s1.south) -- (f1.north);
+				\draw[save] (s2.south) -- (f2.north);
+				\draw[save] (s3.south) -- (f3.north);
+				\draw[save] (s4.south) -- (f4.north);
+			\end{tikzpicture}
+			\end{figure}
+		\end{column}
+	\end{columns}
+\end{frame}
+
+\begin{frame}{Wo kann ich das einsetzen?}
+	\begin{itemize}
+		\item Source-Code
+		\item Konfiguration
+		\item Dokumente
+		\item Daten
+	\end{itemize}
+
+	\vspace{1em}
+
+	Also alles, was \emph{Text} ist.
+\end{frame}
+
+\begin{frame}{Was bringt mir das?}
+	\centering
+	
+	{
+		\fontsize{40}{48}\selectfont
+		Zeitmaschinen
+	}\\
+	\vspace{1em}
+	\small{und}\\
+	\vspace{1em}
+	{
+		\fontsize{40}{48}\selectfont
+		Paralleluniversen
+	}
+\end{frame}
+
+\section{Warum jetzt genau Git?}
+
+\begin{frame}{Kurze Histore}
+	\begin{figure}[H]
+	\begin{tikzpicture}[]
+		\tikzstyle{kind}+=[rectangle, very thick, minimum size=3.5em]
+		\tikzstyle{prod}+=[]
+		
+		\node[kind, draw=red!90!yellow!60, fill=red!90!yellow!5] (l) at(0,6) {Lokale Versionsverwaltung};
+		\node[kind, draw=red!60!yellow!60, fill=red!60!yellow!5] (c) at(0,3) {Zentrale Versionsverwaltung};
+		\node[kind, draw=red!30!yellow!60, fill=red!30!yellow!5] (d) at(0,0) {Verteilte Versionsverwaltung};
+
+		\draw[->,thick] (l.south) -- (c.north);
+		\draw[->,thick] (c.south) -- (d.north);
+
+		\node[prod] (l1) [right=of l, yshift=+1em] {SCCS};
+		\node[prod] (l2) [right=of l, yshift=-1em] {RCS};
+		
+		\node[prod] (c1) [right=of c, yshift=+1em] {CSV};
+		\node[prod] (c2) [right=of c, yshift=-1em] {SVN};
+		
+		\node[prod] (d1) [right=of d, yshift=+1em] {Git};
+		\node[prod] (d2) [right=of d, yshift= 0em] {Bazaar};
+		\node[prod] (d3) [right=of d, yshift=-1em] {Mercurial};
+
+		\draw[->] (l.east) -- (l1.west);
+		\draw[->] (l.east) -- (l2.west);
+
+		\draw[->] (c.east) -- (c1.west);
+		\draw[->] (c.east) -- (c2.west);
+
+		\draw[->] (d.east) -- (d1.west);
+		\draw[->] (d.east) -- (d2.west);
+		\draw[->] (d.east) -- (d3.west);
+			
+	\end{tikzpicture}
+	\end{figure}
+\end{frame}
+
+\begin{frame}{Git is everywhere}
+	\begin{columns}[c]
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/GitHub.png}
+		\end{column}
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/Codeberg.png}
+		\end{column}
+	\end{columns}
+	\vspace{1em}
+	\begin{columns}[c]
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/GitLab.png}
+		\end{column}
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/SourceHut.png}
+		\end{column}
+	\end{columns}
+	\vspace{1em}
+	\begin{columns}[c]
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/Gitea.png}
+		\end{column}
+		\begin{column}{0.5\textwidth}
+			\centering
+			\includegraphics[width=0.9\textwidth]{logos/Bitbucket.png}
+		\end{column}
+	\end{columns}
+\end{frame}
+
+\section{Einrichtung und Installation}
+
+\begin{frame}[fragile]{Installation}
+	\begin{description}
+		\item[Windows] https://gitforwindows.org/ oder \\
+			\x^# choco install git^
+
+		\item[Linux] \x^# sudo dnf install git-all^ oder \\
+			\x^# sudo apt install git-all^ oder ...
+
+		\item[macOS] \x^# git --version^
+	\end{description}
+\end{frame}
+
+\begin{frame}[fragile]{Einrichtung}
+	\begin{minted}{console}
+		# git config --global user.name "Dustin Frisch"
+		# git config --global user.email "dustin.frisch@ai.hs-fulda.de"
+	\end{minted}
+\end{frame}
+
+\begin{frame}
+	\centering
+	\LARGE
+	Pause
+\end{frame}
+
+\section{Aller Anfang ist schwer}
+
+\begin{frame}[fragile]{Neues Projekt}
+	Neuen Ordner anlegen und in diesen wechseln.
+
+	\begin{minted}{console}
+		# git init
+		Initialized empty Git repository in /home/fooker/tmp/myproject/.git/
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Den überblick behalten}
+	Eine Datei in dem Ordner anlegen.
+
+	\begin{minted}{console}
+		# git status
+		On branch main
+		
+		No commits yet
+		
+		Untracked files:
+		  (use "git add <file>..." to include in what will be committed)
+			test.c
+		
+		nothing added to commit but untracked files present (use "git add" to track)
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Der Staging-Bereich}
+	\begin{minted}{console}
+		# git add test.c
+
+		# git status
+		On branch main
+		
+		No commits yet
+		
+		Changes to be committed:
+		  (use "git rm --cached <file>..." to unstage)
+			new file:   test.c
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Mein erstes mal}
+	\begin{minted}{console}
+		# git commit
+		main (root-commit) 27cda20] A wonderful commit message
+		 1 file changed, 6 insertions(+)
+		 create mode 100644 test.c
+
+		# git status
+		On branch main
+		nothing to commit, working tree clean
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Oh, ein wie konnte das nur passieren}
+	Die Datei in dem Ordner wird geändert.
+
+	\begin{minted}{console}
+		# git add test.c
+
+		# git commit
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Was bisher geschah...}
+	\begin{minted}{console}
+		# git log
+		commit 7163f25b8e477a43accc28c30f3bd4351a2d72a2
+		Author: Dustin Frisch <fooker@lab.sh>
+		Date:   Mon Oct 18 22:12:28 2021 +0200
+		
+		    Fixed dumb mistake
+		
+		commit 27cda204ad4caae123b44f1fc8d3ac6645e66d3f
+		Author: Dustin Frisch <fooker@lab.sh>
+		Date:   Mon Oct 18 22:07:31 2021 +0200
+		
+		    A wonderful commit message
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{So langsam wird es}
+	Eine weitere Datei anlegen.
+
+	\begin{minted}{console}
+		# git add example.c
+
+		# git commit -m "Added example"
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Namesgebung ist schwierig}
+	Eine Datei umbenennen.
+
+	\begin{minted}{console}
+		# git status
+		On branch main
+		Changes not staged for commit:
+		  (use "git add/rm <file>..." to update what will be committed)
+		  (use "git restore <file>..." to discard changes in working directory)
+			deleted:    test.c
+		
+		Untracked files:
+		  (use "git add <file>..." to include in what will be committed)
+			main.c
+		
+		no changes added to commit (use "git add" and/or "git commit -a")
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Namensgebung ist schwierig}
+	\begin{minted}{console}
+		# git add test.c main.c
+
+		# git status
+		On branch main
+		Changes to be committed:
+		  (use "git restore --staged <file>..." to unstage)
+			renamed:    test.c -> main.c
+
+		# git commit -m "Naming fixed"
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Und weg damit}
+	Eine Datei löschen.
+	\begin{minted}{console}
+		# git rm example.c
+
+		# git commit -m "This was a mistake"
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Was hab ich nur getan}
+	Eine Datei ändern.
+	\begin{minted}{console}
+		# git diff
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Keine Fehler}
+	\begin{minted}{console}
+		# git restore main.c
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Was werde ich nur getan haben}
+	Eine Datei ändern.
+	\begin{minted}{console}
+		# git add main.c
+
+		# git diff --staged
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Nee, doch nicht}
+	Datei nochmal ändern
+	\begin{minted}{console}
+		# git restore --staged main.c
+	\end{minted}
+\end{frame}
+
+\section{Ein Baum ist ein Baum ist ein Baum}
+
+\begin{frame}[fragile]{Alles hat ein Ende}
+	\begin{minted}{console}
+		# git branch
+		* main
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Nur der Baum hat viele}
+	\begin{minted}{console}
+		# git branch feature-x
+
+		# git branch
+		  feature-x
+		* main
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Wer die Wahl hat}
+	\begin{minted}{console}
+		# git checkout feature-x
+		Switched to branch 'feature-x'
+
+		# git branch
+		* feature-x
+		  main
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Als währe nichts gewesen}
+	Ein paar Commits erzeugen.
+	\begin{minted}{console}
+		# git checkout main
+		Switched to branch 'main'
+
+		# git log
+		...
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Realität ist subjektiv}
+	Eine paar Commits erzeugen.
+	\begin{minted}{console}
+		# git checkout feature-x
+		Switched to branch 'feature-x'
+
+		# git log
+		...
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Zusammen was zusammen gehört}
+	\begin{minted}{console}
+		# git merge main
+		Merge made by the 'recursive' strategy.
+		...
+
+		# git log
+		...
+	\end{minted}
+\end{frame}
+
+\begin{frame}
+	\centering
+	\LARGE
+	Pause
+\end{frame}
+
+\section{Mein, dein. Das sind doch bürgerliche Kategorien}
+
+\begin{frame}[fragile]{So klein und schon bei den Sturmtruppen?}
+	\begin{minted}[bgcolor=bgr]{console}
+		# git clone http://git.open-desk.net/git/_.git project
+	\end{minted}
+
+	\begin{minted}[bgcolor=bgr]{console}
+		# git remote -v
+		origin	http://git.open-desk.net/git/_.git (fetch)
+		origin	http://git.open-desk.net/git/_.git (push)
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Jeder fängt mal klein an}
+
+	\begin{minted}[bgcolor=bgl]{console}
+		# git remote add origin http://git.open-desk.net/git/_.git
+		# git push origin main
+		...
+		To http://git.open-desk.net/git/_.git
+		 * [new branch]      main -> main
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Zieh, zeih, zieh!}
+	\begin{minted}[bgcolor=bgr]{console}
+		# git pull
+		...
+		From http://git.open-desk.net/git/_
+		 * [new branch]      main       -> origin/main
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Und jetzt alle zusammen}
+	In beiden Ordnern einen Commit erzeugen
+
+	\begin{minted}[bgcolor=bgl]{console}
+		# git push origin main
+		...
+		To http://git.open-desk.net/git/a.git
+		   ba998dd..a5069cc  main -> main
+	\end{minted}
+
+	\begin{minted}[bgcolor=bgr]{console}
+		# git push origin main
+		To http://git.open-desk.net/git/_.git
+		 ! [rejected]        main -> main (fetch first)
+		error: failed to push some refs to 'http://git.open-desk.net/git/_.git'	
+	\end{minted}
+\end{frame}
+
+\begin{frame}[fragile]{Ständiges Hin und Her}
+	\begin{minted}[bgcolor=bgr]{console}
+		# git pull
+		...
+		From http://git.open-desk.net/git/a
+		 + 07493c7...a5069cc main       -> origin/main  (forced update)
+		Successfully rebased and updated refs/heads/main.
+
+		# git push
+		...
+		To http://git.open-desk.net/git/a.git
+		   a5069cc..baf125b  main -> main
+	\end{minted}
+\end{frame}
+
+\section{Alles immer bitte gleich richtig machen}
+
+\begin{frame}[fragile]{Ich meine es nur gut}
+	\begin{itemize}
+		\item Nutzt SSH-Schlüssel mit einem SSH-Agent. \\
+			Tutorials gibt es von GitHub.
+		\item Signiert eure Commits. \\
+			Auch hier hilft GitHub weiter.
+	\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]{Ja, wirklich}
+	\begin{itemize}
+		\item Konfiguriert euch einen Shell-Prompt für Git.
+		\item Macht kleine und strukturierte Commits. \\
+			\x{# git add -p -i .}
+	\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]{Falls noch Zeit bleibt}
+	\begin{itemize}
+		\item \x{# git commit --amend}
+		\item \x{# git stash}
+		\item \x{# git blame}
+		\item \x{# git rebase -i}
+		\item \x{# git rebase --onto}
+	\end{itemize}
+\end{frame}
+
+\begin{frame}
+	\centering
+
+	\vspace{3em}
+
+	{
+		\LARGE
+		Danke
+	}
+	
+	\vspace{3em}
+
+	https://ohmygit.org
+\end{frame}
+
+\end{document}

shell.nix

@@ -0,0 +1,32 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+let
+  pkgs = import (builtins.fetchTarball {
+    name = "nixos-21.05";
+    url = "https://github.com/nixos/nixpkgs/archive/21b696caf392ad6fa513caf3327d0aa0430ffb72.tar.gz";
+    sha256 = "1056r3383aaf5zhf7rbvka76gqxb8b7rwqxnmar29vxhs9h56m5k";
+  }) {};
+
+in pkgs.mkShell {
+  buildInputs = with pkgs; [
+    (hunspellWithDicts [
+      hunspellDicts.en-us
+      hunspellDicts.de-de
+    ])
+
+    (texlive.combine {
+      inherit (texlive) scheme-full;
+    })
+
+    python38Packages.pygments
+
+    (pkgs.vscode-with-extensions.override {
+      vscode = pkgs.vscodium;
+      vscodeExtensions = with pkgs.vscode-extensions; [
+        james-yu.latex-workshop
+      ];
+    })
+
+    qtikz
+  ];
+}

tikzfig.sty

@@ -0,0 +1,50 @@
+\usepackage{tikz}
+\usepackage{pgfplots}
+\usetikzlibrary{trees}
+\usetikzlibrary{topaths}
+\usetikzlibrary{decorations.pathmorphing}
+\usetikzlibrary{fadings}
+\usetikzlibrary{decorations.pathreplacing}
+\usetikzlibrary{decorations.markings}
+\usetikzlibrary{matrix,backgrounds,folding}
+\usetikzlibrary{chains,scopes,positioning,fit}
+\usetikzlibrary{arrows,shadows}
+\usetikzlibrary{calc} 
+\usetikzlibrary{chains}
+\usetikzlibrary{shapes,shapes.geometric,shapes.misc}
+\usetikzlibrary{circuits.ee.IEC}
+
+\newcommand{\tikzfigg}[1]{\tikz[baseline=-0.5em]{\node[draw=red,font=\color{red},fill=red!10!white] {\textit{#1}};}}
+
+\newcommand{\ctikzfigg}[1]{\begin{center}
+\tikz[baseline=-0.5em]{\node[draw=red,font=\color{red},fill=red!10!white] {\textit{#1}};}
+\end{center}}
+
+\newcommand{\tikzfigTODO}[1]{\textbf{\color{red}(figure: #1)}}
+\newcommand{\ctikzfigTODO}[1]{\begin{center}
+\textbf{\color{red}(figure: #1)}
+\end{center}}
+
+
+\newcommand{\tikzfig}[1]{%
+\IfFileExists{#1.tikz}
+  {\input{#1.tikz}}
+  {%
+    \IfFileExists{./figures/#1.tikz}
+      {\input{./figures/#1.tikz}}
+      {\tikz[baseline=-0.5em]{\node[draw=red,font=\color{red},fill=red!10!white] {\textit{#1}};}}%
+  }%
+}
+\newcommand{\ctikzfig}[1]{%
+\begin{center}\rm
+  \tikzfig{#1}
+\end{center}}
+
+%\newcommand{\inlinetikzfig}[1]{\InputIfFileExists{#1.tikz}{}{\input{./figures/#1.tikz}}}
+
+\pgfdeclarelayer{edgelayer}
+\pgfdeclarelayer{nodelayer}
+\pgfsetlayers{background,edgelayer,nodelayer,main}
+\tikzstyle{none}=[inner sep=0mm]
+\tikzstyle{every loop}=[]
+\tikzstyle{mark coordinate}=[inner sep=0pt,outer sep=0pt,minimum size=3pt,fill=black,circle]