Arfficionado: reader for ARFF data sets (Attribute Relation File Format).
Furlong: An Elixir port of the Kiwi Solver / Cassowary incremental constraint solving toolkit.
Query SunnyBoy 3.6 inverter for current output in watts, total yield and other information via the inverter's internal web interface.
Porter2 stemmer: efficient implementation of the English Porter2 stemming algorithm.