To build the package, execute the following commands:

$ https://aur.archlinux.org/mrcode.git
$ cd mrcode
$ makepkg -sr

Wait for the build to complete, then install the package:

$ pacman -U mrcode-${version}-${arch}.pkg.tar.zst

If the package installed correctly, and MrCode runs correctly, update the AUR with the new code:

$ makepkg --printsrcinfo > .SRCINFO
$ git add PKGBUILD .SRCINFO
$ git commit -am "Updated to $( cat .SRCINFO | sed -n -E "s/.*pkgver = (.*)/\1/p" )-$( cat .SRCINFO | sed -n -E "s/.*pkgrel = (.*)/\1/p" )"
$ git push