Enable shell-escape for minted

.latexmkrc

-# For gnuplot support: $pdflatex="pdflatex -synctex=1 -interaction=nonstopmode -halt-on-error -shell-escape";
 # For LuaTex: $pdflatex="lualatex -synctex=1 -interaction=nonstopmode -halt-on-error";
 # You can mix lualatex, synctex and shellescape if you wish
-$pdflatex = 'pdflatex -synctex=1 -interaction=nonstopmode -halt-on-error';
+$pdflatex = 'pdflatex -synctex=1 -interaction=nonstopmode -halt-on-error -shell-escape';
 $pdf_mode=1;
 $postscript_mode=0;
 $dvi_mode=0;

Makefile

@@ -7,7 +7,7 @@ TXSCWLPATH = ~/.config/texstudio/completion/user
 
 all: $(PDFFILE)
 
-# Options defined in ./.latexmkrc are used here, if you require --shell-escape or want to use another TeX-Engine,
+# Options defined in ./.latexmkrc are used here, if you require special flags or want to use another TeX-Engine,
 # please see the comments there.
 $(PDFFILE): $(TEXFILE) $(DEPFILES)
 	latexmk $(TEXFILE)