To avoid this error, we need to increase the inotify watcher limit.
The way to do this is different on Arch based distributions than other Linux distributions.
Check for an already existing inotify config file (recent versions of Manjaro include one)
ls /etc/sysctl.d/*-max_user_watches.conf
echo fs.inotify.max_user_watches=524288 | sudo tee /etc/sysctl.d/40-max_user_watches.conf && sudo sysctl --system
(in the rare case where it outputs multiple files, continue using the last one in the list)
# replace `/etc/sysctl.d/50-max_user_watches.conf` with the file returned from the previous `ls` command
echo fs.inotify.max_user_watches=524288 | sudo tee /etc/sysctl.d/50-max_user_watches.conf && sudo sysctl --system
cat /proc/sys/fs/inotify/max_user_watches
Expected output: 524288
Pretty sure you need privileged access, kernel changes generally require root, unless you have a really permissive system.