Red Arrow is the Ruby bindings of Apache Arrow. Red Arrow is based on GObject
Introspection.

Apache Arrow is an in-memory columnar data store. It's used by many products for
data analytics.

GObject Introspection is a middleware for language bindings of C library.
GObject Introspection can generate language bindings automatically at runtime.

Red Arrow uses Apache Arrow GLib and gobject-introspection gem to generate Ruby
bindings of Apache Arrow.