8.13.3 Can you answer these questions?

8.13.3.1 Looking for a Comparatively Simple Way (without Enumitem) to Not Indent Enumerate Items

https://tex.stackexchange.com/landing/r/digest?cta=question&id=634879

Consider the following simple code which by itself, nicely displays the enumerate items without indentation: 
\documentclass{book} 
\usepackage{enumitem} 
\begin{document} 
\thispagestyle{empty} 
\Large 
\... 
[luatex] [lists] [enumerate] [indentation] [enumitem]
 

asked by mlchristians https://tex.stackexchange.com/landing/r/digest?cta=user&id=192836 Score of 1

8.13.3.2 How to fix the value of a key(or macro) when it gets value from another macro

https://tex.stackexchange.com/landing/r/digest?cta=question&id=634516

The following code showes that the value of key constant changes with the macro \aaa. 
My question is: how to fix the value of key constant once it gets value from \aaa at the first time, so that both \... 
[tikz-pgf] [macros] [pgfkeys]
 

asked by lyl https://tex.stackexchange.com/landing/r/digest?cta=user&id=140732 Score of 1

8.13.3.3 bibliography style with reference page numbers

https://tex.stackexchange.com/landing/r/digest?cta=question&id=634712

What bibliography style is used here? reference page numbers and doi? 
[biblatex]
 

asked by Anna https://tex.stackexchange.com/landing/r/digest?cta=user&id=264074 Score of 2