credits.rb

# Teams with a subscription are issued a set of credits every month, based on their plan level.
# Those credits can be used to “pay” for various types of reports. Small reports may cost 1 credit, large reports may cost 500 credits.
# Reports may also vary in cost, depending on the contents and configured options at time of initiation.
# Credits have an expiration date, based on when they were issued. When expired, credits can no longer be used to “pay” for reports.
# When reports are “paid” for with credits, the system should use credits that are closest to expiration.

mix.rb

# Spotify Mix Playlists: Assuming we have a history of played songs for a user,
# we have song recommendations via nearest neighbor search,
# and we have categorizations (genre, mood, era, instrumental/vocal, cultural/regional, theme),
# let system admins create mix templates based on music categorizations
# and then generate refreshable custom playlists for each user.

rss.rb

# RSS Feed Reader: Users subscribe to RSS and Atom feeds, and get a list of posts they can read and favorite.