FeatureMap is a Ruby gem and must be executed within a Ruby environment. For non-Ruby projects, this may be done by via inline bundling.

An inline-bundled script might look like:

#!/usr/bin/env ruby
# frozen_string_literal: true

require 'bundler/inline'

gemfile(true) do
  source 'https://rubygems.org'
  gem 'feature_map'
end

FeatureMap::Cli.run!(ARGV)

This can be placed in a script within any project and made executable (chmod +x), and invoked as if it were a command-line tool. Note that some environments are packaged with system libraries (e.g., uri) whose version conflicts with the version that FeatureMap expects. Resolve these issues by installing FeatureMap’s version of the given dependency in your system’s environment.