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Derek Bender djbender

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@mbj
mbj / segfault.rb
Last active August 29, 2015 14:07
segfault.rb - Intentionally crash ruby
require 'ffi'
module Segfault
extend FFI::Library
ffi_lib 'ruby'
attach_function :rb_bug, [:string, :varargs], :void
end # Segfault
Segfault.rb_bug('%s', :string, 'test bug')
export APPLICATION_NAME="endorsemint"
export APPLICATION_SESSION_SECRET="endorsemint"
export APPLICATION_LOG_LEVEL="DEBUG"
export DATABASE_POOL=5
export DATABASE_REAP_FREQUENCY=5
export DATABASE_TIMEZONE="utc"
export DATABASE_TIMEOUT=15
export DATABASE_URL="postgres://endorsemint@localhost:5432/endorsemint_development"
export PORT=9292
export PUMA_THREADS_MAX=1
@telmofcosta
telmofcosta / backup-restore sdcard
Created February 8, 2015 12:16
Backup and restore an SD card on Mac OS x (perfect for Raspberry Pi)
# insert SD and find out where it is mounted
diskutil list
# /dev/disk0
# #: TYPE NAME SIZE IDENTIFIER
# 0: GUID_partition_scheme *250.1 GB disk0
# ...
# /dev/disk1
# #: TYPE NAME SIZE IDENTIFIER
# 0: FDisk_partition_scheme *15.7 GB disk1
# ...
@jewelia
jewelia / gist:0b8f26e91f2818bef460
Last active August 29, 2015 14:15
3 Great Engineering Management Talks from 2014

General key themes:

  • Hiring is really hard. You’re not just hiring a “Rails Engineer” or a “Python Programmer” you’re hiring someone who can help you change the world. Tell them why! Talk about the hard problems you’re solving. 2/3 of these talks give ideas and insight into hiring from sourcing to actual interview processes.

  • Rewriting systems is hard. People think they are going to replace their broken down horse and buggie with a bullet train and this often ends up in disaster. Successful rewrites require an incremental approach that takes months/years and often runs way over schedule. 2/3 of these talks go over how to handle rewrites not only from a high level technical perspective but a cultural/management perspective as well.

Two Developers, Many Lines of Code, and A Campaign that Made History

Harper Reed (CTO of Obama for America, now CEO of Modest) and Dylan Richard (Director of Eng of Obama for America, now CTO of Modest)

#!/bin/sh
set -e
trap "rm -f tags.$$" EXIT
ctags --tag-relative -Rftags.$$ \
--exclude=.git \
--exclude=public/javascripts/vendor \
--exclude=public/flash \
--exclude=node_modules \
--exclude=public/javascripts/compiled \
--exclude=public/javascripts/bower \
@bastman
bastman / docker-cleanup-resources.md
Created March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@jesstelford
jesstelford / event-loop.md
Last active December 5, 2024 02:05
What is the JS Event Loop and Call Stack?

Regular Event Loop

This shows the execution order given JavaScript's Call Stack, Event Loop, and any asynchronous APIs provided in the JS execution environment (in this example; Web APIs in a Browser environment)


Given the code

@jesstelford
jesstelford / README.md
Last active November 14, 2023 12:26
Starving the Event Loop with Microtasks

Starving the Event Loop with microtasks

"What's the Event Loop?"

Sparked from this twitter conversation when talking about doing fast async rendering of declarative UIs in Preact

These examples show how it's possible to starve the main event loop with microtasks (because the microtask queue is emptied at the end of every item in the event loop queue). Note that these are contrived examples, but can be reflective of situations where Promises are incorrectly expected to yield to the event loop "because they're async".

  • setTimeout-only.js is there to form a baseline
@jessicard
jessicard / macarons.md
Last active July 24, 2024 01:51
Macarons!

Basic macaron shell recipe

  • This will make approximately 100 shells, or about 4 dozen cookies
  • When practicing, I generally half this recipe to only make 1 sheet of cookies
  • When making macarons, you will generally flavor the filling but not the shells
  • You want to make the macarons the day before the event. You will store them in the refrigerator over night, and then take them out a few hours before to come to room temperature. This is because macarons are best when "ripened", or allowed to sit for at least one night and have the filling seep into the shells a bit. Otherwise, straight out of the oven, they can be too crunchy or hard
  • Macarons shells freeze well! Filled macarons can also freeze well depending on the filling. Buttercream fillings freeze great. Put the cookies into an airtight container before freezing
  • Everyones baking temperature and baking time vary depending on their oven - you might have to experiment a bit!
  • _I always separate egg whites myself by cracking the egg, p
@josby
josby / concat_mp4.sh
Created May 12, 2017 18:38
Concat GoPro Videos with ffmpeg
ffmpeg -f concat -safe 0 -i <(for f in ./*.MP4; do echo "file '$PWD/$f'"; done) -c copy output.MP4