8.19.3 Can you answer these questions?

8.19.3.1 Align note text and logo in beamer title slide

https://tex.stackexchange.com/landing/r/digest?cta=question&id=637425

I have to include a logo and sentence of the supporting funding agency on my title slide. I'd like it to be small, at the bottom and take little space. To do that, I think it would be if the sentence ... 
[beamer] [spacing] [footnotes] [titles] [logos]
 

asked by Papayapap https://tex.stackexchange.com/landing/r/digest?cta=user&id=230357 Score of 1

8.19.3.2 weird verbatim-like manual environment writing with luatex preprocessing

https://tex.stackexchange.com/landing/r/digest?cta=question&id=637555

I'm currently trying to make my wrapper around tikzpicture while preserving the tikzexternalize functionality (see this post, this and this one for reference where some of my ideas came from) a real ... 
[luatex] [environments] [lua]
                                                                                  

                                                                                  
 

asked by atticus https://tex.stackexchange.com/landing/r/digest?cta=user&id=206293 Score of 1

8.19.3.3 Problem regarding setting of label in Feynman Diagram

https://tex.stackexchange.com/landing/r/digest?cta=question&id=637570

I want to draw a Feynman Diagram, for this I have written this code. 
\documentclass[a4paper,12pt, border=5mm]{standalone} 
\usepackage{tikz} 
\usetikzlibrary{decorations, decorations.markings, ... 
[luatex] [tikz-feynman]
 

asked by Anirban Majumdar https://tex.stackexchange.com/landing/r/digest?cta=user&id=264031 Score of 1