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burke /
Last active Feb 13, 2020
This sets up keybindings in tmux that allow you to copy/paste to/from your OS X clipboard from tmux running inside an SSH connection to a remote host. Partially borrowed from

Local (OS X) Side


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "">
<plist version="1.0">
burke /
Created Jan 27, 2012 — forked from funny-falcon/cumulative_performance.patch
ruby-1.9.3-p327 cumulative performance patch for rbenv

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.


You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

View ,
# usage example:
# $ , yarn --help
# This finds a derivation providing a bin/yarn, and runs it with `nix run`.
# If there are multiple candidates, the user chooses one using `fzy`.
set -euo pipefail
if [[ $# -lt 1 ]]; then
>&2 echo "usage: , <program> [arguments]"
burke /
Last active Oct 22, 2019
Code Release for NixCon 2019

The rest of these files are the code referenced in my NixCon 2019 talk which live in Shopify's non-public codebases. Everything in this gist is extracted with minimal or no change from our codebase, and thus some of it references libraries or other code not included here. cli-ui and cli-kit probably comprise a majority of these cases.

All code Copyright Shopify, 2019, released here under MIT License.

View ohno.rb
module Ohno
def self.replace_index(welp, index)
case welp
when String
welp == "$index" ? index : welp.gsub(/\$index/, index.to_s)
burke / genkey.rb
Created Oct 12, 2016
Create an Elliptic Curve keypair in ruby
View genkey.rb
require 'openssl'
k ='secp384r1').generate_key
p =
p.public_key = k.public_key
puts k.to_pem, p.to_pem


Replacing a space with a newline doesn't obey indentation rules:

  def foo(x)
    a = x.each { |e| puts(e) }
                  # ^ put cursor here and press `r<cr>`.
View centers.rb
#!/usr/bin/ruby --disable-gems
out, stat = Open3.capture2('qpdf', '--qdf', '--object-streams=disable', 'left-key-spacing.pdf', '-')
abort('qpdf fail') unless stat.success?
# coordinates are indexed from top-left, x is horizontal; y is vertical
View helm-dev.el
;;; helm-dev.el --- dev cd - projectile/helm interface. -*- lexical-binding: t -*-
;; Version: 1.0.0
;; Package-Requires: ((helm "1.5") (cl-lib "0.5") (emacs "24.1"))
;;; Code:
(require 'cl-lib)
(require 'helm)
(require 'helm-utils)
View http-promise.rb
ctx =
ctx.set_params(verify_mode: OpenSSL::SSL::VERIFY_PEER)
raw_sock =, 443)
ssl_sock =, ctx)
ssl_sock.hostname = host
ssl_sock.sync_close = true
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