I developed a free-open source software called LandScient_EWS that (preliminary) is able to use real-time rainfall measurements (from rain gauges) and to compare it with pre-established rainfall thresholds (for landslides) on a study area (to issue advisory levels). In my doctoral thesis, I argued that similar codes are not usually open to use them or modify them for particular requirements of a landslide early warning system. Do you know what similar free-open codes are available?