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Format

Mozilla docs would recommend the VP9 codec and a WebM container; alternatively AVC (H.264) codec and MP4 container.

Execution

Configuration

Geometry

Vim

Create a local config.vim file with:

set nonumber
set nocursorline
set nowrap
set linebreak
set textwidth=53

unlet g:UltiSnipsJumpForwardTrigger
let g:UltiSnipsJumpForwardTrigger = "<Tab>"
function! JumpAndWrite() abort
  call UltiSnips#JumpForwards()
  write
endfunction
inoremap jk <Cmd>call JumpAndWrite()<CR>

noremap <leader>r <Cmd>update<CR><Cmd>VimtexCompile<CR>
augroup vimtex_event_focus
  au!
  au User VimtexEventView execute ":!i3-msg focus down"
augroup END
augroup vimtex_event_close
  au!
augroup END

LaTeX preamble

\documentclass[12pt, a4paper]{article}
\usepackage{amsmath, amssymb, mathtools, bm, esint}
\usepackage{xcolor}
\definecolor{nord0}{HTML}{2e3440}
\color{nord0}  % set desired text color

To hide equations, you can use \[ \] with lots of blank lines. To make pdflatex ignore blank lines in math mode, add the following to your preamble:

\everymath=\expandafter{\the\everymath\let\par\relax}
\everydisplay=\expandafter{\the\everydisplay\let\par\relax}

Starting Vim

Call VimtexView, which will open mupdf. Call VimtexCompile, which will compile document after each save. VimTeX takes care of sending SIGHUP to mupdf after successful compilation.