To load Emacs config you just need copy "emacs.el" file to default emacs config path ("~/.emacs.el") and install preselected packages from elpa/melpa repositories:
M-x package-install-selected-packages
This mutt config uses gmail imap and smtp with a little encryption (gpg). For GMail accounts just set the "my_*" variables in muttrc and you are done (if using other email servers this can be done with some changes - "do it yourself").
The mpv configuration contains the following scripts:
Shaders are from Argon Github Repository.
The URxvt configuration depends both .Xresources file and .urxvt folder ($HOME directory). There are some perl extensions in use for shortcut definitions, Copy/Paste, and font resize: