If you have a server with [rem](https://github.com/kykim/rem) installed, this Ruby script can create and complete Apple Reminders when GitHub issues are opened or closed. It is currently configured to push issues from a single repo to multiple iCloud lists based on issue tags. These lists must already exist.

github_issues_to_reminders.rb

require 'sinatra'
require 'json'
require 'time'
require 'octokit'
require 'yaml'

set :bind, '0.0.0.0'

# Fix Encoding Errors on OSX
if RUBY_VERSION =~ /2.*.*/
  Encoding.default_external = Encoding::UTF_8
  Encoding.default_internal = Encoding::UTF_8
end

# Load variables
token = "YOUR_GITHUB_ACCESS_TOKEN"
repo = "USERNAME/REPO"

# Parse the GitHub webhook
post '/payload' do
# Get GitHub Data
  push = JSON.parse(request.body.read)
  puts push["action"]

# Get Reminders
  names = []
  reminders = `/usr/local/bin/rem`
  reminders.lines.each_with_index do |line, i|
    /(\d+).\s(?<item>.*)/ =~ line
    names.push(item)
  end

# Create new reminder when issue is created if it doesn't already exist
  if push["action"] == "opened" || push["action"] == "reopened"
    issue = push["issue"]["title"]
    num = push["issue"]["number"]
    url = push["issue"]["html_url"]
    if names.include?(issue)
      puts "Already present!"
    else
      sleep 0.5 
      client = Octokit::Client.new(:access_token => "#{token}")
      myList = ''
      myList = client.issue("#{repo}", "#{num}").labels[0].name
      puts myList
      %x{ osascript <<APPLESCRIPT
      tell application "Reminders"
      tell list "#{myList}"
      make new reminder with properties {name:"#{issue}", body: "#{url}", due date:(current date)}
      end tell
      end tell
      APPLESCRIPT}
      puts "#{issue} created"
    end
  end

# Close Reminder when an issue is closed
  if push["action"] == "closed"
    entry = push["issue"]["title"].strip
    body = push["issue"]["body"].strip
    url = push["issue"]["html_url"].strip
    if push["repository"]["name"] == "fieldnoise"
      tag = "Fieldnoise"
    else
      tag = push["issue"]["labels"][0]["name"]
    end
    data = `/usr/local/bin/rem`
    data.lines.each_with_index do |line, i|
      if line =~ /#{entry}/
        /(?<num>\d+).\s(?<item>.*)/ =~ line
        /(?<var>\w+)/ =~ data.lines[i - num.to_i]
        `/usr/local/bin/rem done #{var} #{num}`
      puts "Reminder closed"
      end
    end
  end

# Delete completed Reminders
  %x{ osascript <<APPLESCRIPT
  tell application "Reminders"
    delete (every reminder whose completed is true)
  end tell
  APPLESCRIPT}

end