Jonathan Ragan-Kelley jrk

See the official Differentiable Programming Manifesto instead.

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

Idiomatic React Testing Patterns

Testing React components seems simple at first. Then you need to test something that isn't a pure interaction and things seem to break down. These 4 patterns should help you write readable, flexible tests for the type of component you are testing.

Setup

I recommend doing all setup in the most functional way possible. If you can avoid it, don't set variables in a beforeEach. This will help ensure tests are isolated and make things a bit easier to reason about. I use a pattern that gives great defaults for each test example but allows every example to override props when needed:

This is a simple, should-be-drop-in replacement for the old /System/Library/Printers/Libraries/quartzfilter utility which went away circa OS X 10.8.

Usage:

chmod +x quartzfilter.js
./quartzfilter.js infile.pdf filter.qsfilter outfile.pdf

e.g.,

./quartzfilter.js my-big-pdf.pdf "/System/Library/Filters/Reduce File Size.qfilter" my-less-big-pdf.pdf

Orthodox C++

What is Orthodox C++?

Orthodox C++ (sometimes referred as C+) is minimal subset of C++ that improves C, but avoids all unnecessary things from so called Modern C++. It's exactly opposite of what Modern C++ suppose to be.

	javascript:

	`
	WorkFlowy x 2
	=============

	- A browser Bookmarklet to give you a dual panel WorkFlowy view

	Features / Usage:

	--------------------------------------------------
	--------------------------------------------------
	-- Import tasks from Things to OmniFocus
	--------------------------------------------------
	--------------------------------------------------
	--
	-- Script taken from: http://forums.omnigroup.com/showthread.php?t=14846&page=2 && https://gist.github.com/cdzombak/11265615
	-- Added: OF3 & Things 3 compatibility; task order; areas/folders; tags
	-- Empty your Things Trash first.
	--

	on run argv

	# Set variables
	set chrome to "Google Chrome"
	set zoom to "zoom.us"
	set wait to 0.5
	set initialWindow to "Zoom - Pro Account" # If you're not using Zoom Pro you will need to change this

	tell application chrome
	if it is running then

	from PyPDF2 import PdfFileReader, PdfFileWriter
	from PyPDF2.pdf import PageObject


	reader = PdfFileReader(open("invoice.pdf",'rb'))
	invoice_page = reader.getPage(0)
	sup_reader = PdfFileReader(open("supplement.pdf",'rb'))
	sup_page = sup_reader.getPage(1) # We pick the second page here

	translated_page = PageObject.createBlankPage(None, sup_page.mediaBox.getWidth(), sup_page.mediaBox.getHeight())

	import PIL.Image
	from cStringIO import StringIO
	import IPython.display
	import numpy as np
	def showarray(a, fmt='png'):
	a = np.uint8(a)
	f = StringIO()
	PIL.Image.fromarray(a).save(f, fmt)
	IPython.display.display(IPython.display.Image(data=f.getvalue()))