[[!comment format=mdwn username="frederik@ffbea6a549cb3f460d110386c0f634c1ddc6a68a" nickname="frederik" subject="comment 3" date="2016-04-06T14:14:23Z" content=""" I tried adding & File.dirExists \"/mnt/nfs\" & \"/etc/fstab\" `File.containsLine` \"192.168.1.100:/mnt/usb1 /mnt/nfs nfs intr 0 0\" `onChange` cmdProperty \"mount\" [\"-a\"] This mimicks the bitlbee example on /usr/local/propellor/config-joey.hs But that results: src/config.hs:36:11: No instance for (Combines (Property NoInfo) (UncheckedProperty NoInfo)) arising from a use of ‘onChange’ In the second argument of ‘(&)’, namely ‘\"/etc/fstab\" `File.containsLine` \"192.168.1.100:/mnt/usb1 /mnt/nfs nfs intr 0 0\" `onChange` cmdProperty \"mount\" [\"-a\"]’ """]]