I write latex (and everything else) in Emacs, but use mupdf to view the results, since it's faster than the docview mode in Emacs. I use xmonad so it's easy eno

I write latex (and everything else) in Emacs, but use mupdf to view the results, since it's faster than the docview mode in Emacs. I use xmonad so it's easy enough to switch between windows or have them side-by-side. For document modes (latex and markdown) I have F9 bound to a function which invokes `make` if there's a `Makefile`, `nix-build` if there's a `default.nix` or `render.sh` if that exists. It then runs `killall -HUP mupdf-x11 || true` to force any mupdf instances to refresh. Whilst I like to do things like email in Emacs so I can have the same powerful editing capabilities with the same keymappings, PDFs can't really be edited so there's not much incentive there.