[Unit]
Description=btrfsmaint
After=multi-user.target

[Service]
Type=oneshot
# about 24 hours of failures
# it copies over its files without respecting symlinks, so
# we pass options to use different location.
ExecStart=/a/bin/log-quiet/sysd-mail-once -1 btrfsmaint /a/bin/ds/btrfsmaint