One time I didn't have internet so I wrote up a bunch of issues in json and then used this script to push them up to Github

gh_issue_maker.rb

require 'json'
require 'octokit'

Octokit.configure do |c|
  c.login = 'pickle27'
  c.password = '<github token>'
end

repo = ARGV[0]
file = ARGV[1]

# json file
# [ 
#   "title": "", 
#   "label": "",
#   "desc": ""
# ]

issues = JSON.parse(File.read(file))

issues.each do |issue|
  puts Octokit.create_issue(repo, issue['title'], issue['desc'], label: issue['label'])
end