Build Instructions/ Linux Support

[sortedcord]

Hello, I came across this app on the arch AUR and I decided to install it, but apparently it gives me an error:

error: failed to commit transaction (conflicting files)
yarn: /usr/bin/yarn exists in filesystem
yarn: /usr/bin/yarnpkg exists in filesystem
yarn: /usr/lib/node_modules/yarn/bin/yarn.js exists in filesystem
yarn: /usr/lib/node_modules/yarn/package.json exists in filesystem
Errors occurred, no packages were upgraded.
 -> error installing repo packages
error installing repo packages

So, if yarn is already installed, the installation does not continue. I'm not sure if this is because of a version discrepancy or something else, but I would like to know how exactly am I supposed to install or build it on a linux machine since a linux build is not provided either...