Linux Hint published a tutorial about installing Atom on Arch Linux.
How to install Atom on Arch Linux
Atom can be obtained on Arch Linux from its official repository as well as the snap store. Here, we have listed both methods to install Atom on Arch Linux. Atom is a powerful text editor that can be customized as per the user's wish and thus named as the hackable text editor of the 21st century. As Atom is an open-source and cross-platform tool, thus, it is best suited for Linux-based systems.
