GEM remote: https://rubygems.org/ specs: forwardable (1.3.3) iostruct (0.0.5) prime (0.1.2) forwardable singleton rainbow (3.1.1) singleton (0.2.0) zpng (0.4.5) rainbow (~> 3.1.1) zsteg (0.2.13) iostruct (>= 0.0.5) prime zpng (>= 0.4.5) PLATFORMS ruby DEPENDENCIES zsteg BUNDLED WITH 2.4.13