54. InformersState-of-the-art natural language processing for Ruby
55. Active medianMedian and percentile for Active Record, Mongoid, arrays, and hashes
60. ngt-rubyHigh-speed approximate nearest neighbors for Ruby
65. quirkBuild powerful predictive models with a few lines of code
70. katanaManage multiple environments on Heroku with ease!
72. npySave and load NumPy npy and npz files in Ruby
74. archerRails console history for Heroku, Docker, and more
76. ahoy guideA foundation of knowledge and libraries for solid analytics
84. pluPrice look-up codes made easy
86. active kmsSimple, secure key management for Active Record encryption
89. errbaseCommon exception reporting for a variety of services