End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Gem.dir

dir

# File tmp/rubies/ruby-3.1.3/lib/rubygems.rb, line 403
def self.dir
  paths.home
end

The path where gems are to be installed.

See also .deflate .done_installing .default_specifications_dir .ensure_default_gem_subdirectories also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0