We should fix this warning by changing the gemspec:
$ gem build extism.gemspec
WARNING: open-ended dependency on ffi (>= 1.0.0) is not recommended
if ffi is semantically versioned, use:
add_runtime_dependency 'ffi', '~> 1.0', '>= 1.0.0'
WARNING: See https://guides.rubygems.org/specification-reference/ for help
Successfully built RubyGem
Name: extism
Version: 1.0.0
File: extism-1.0.0.gem
We should fix this warning by changing the gemspec: