snoyberg

#!/usr/bin/env stack
-- stack --resolver lts-12.21 script
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}

import           Control.Lens
import           Control.Monad (replicateM)
import           System.Random
import           RIO

zimbatm

#!/usr/bin/env bash
#
# Usage: callPackage [src] [...nix-build args]
#
# A version of nix-build that uses nixpkgs.callPackage to fill in the
# arguments.
#
# * [src] can be a path or a URL. Defaults to .
#
# Example:

markwylde

These instructions will take you through the step by step process of building and flashing a custom build of the Coreboot ROM to a Chromebook C201.

This guide expects you to have a Chromebook C201, and another ARM computer with Ubuntu installed. Specifically I used the Odroid XU2. You may be able to do this on an Intel platform, using a cross compiler. See the sidenotes section for more information.

Setting up your Ubuntu

Install dependancies

Update your Ubuntu aptitude and install the dependancies we will need.

sudo apt update

c201-kerngen.sh

export ARCH=arm
export CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi-

export KERNEL_SERIES=v4.13
export KERNEL_BRANCH=v4.13-rc1
export LOCALVERSION=
export MALI_VERSION=r19p0-01rel0
export MALI_BASE_URL=https://developer.arm.com/-/media/Files/downloads/mali-drivers/kernel/mali-midgard-gpu

export DTB_FILES="

jdegoes

Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

fstab

How to use matrix.org and vector.im as an IRC client

How to Join an IRC Channel on matrix.org

Join the room #freenode_<#channel>:matrix.org, replacing <#channel> with the name of the IRC channel. For example, in order to join the #prometheus IRC channel, join the room #freenode_#prometheus:matrix.org on matrix.org.

In vector.im, rooms can be joined with the directory symbol on the bottom left.

heptal

Amphetamine

Simple toggleable menubar replacement for Caffeine in Hammerspoon, utilizing ASCIImage (for vector) to create the amphetamine icons. Motivated by the official Caffeine app's icon looking bad on Retina

Get latest version here: amphetamine.lua

Save as amphetamine.lua in ~/.hammerspoon/ and put amphetamine = require "amphetamine" in your init.lua

atopuzov

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

jcs

####Disabling SPI write protection

Put the Chromebook in developer-mode:

• With machine powered off, hold down Esc and Refresh(F3) while hitting power button
• At warning prompt, hit Control+D, then Enter at prompt about enabling developer mode
• Machine will format itself

Now remove the write-protect screw to enable flashrom to flash new Coreboot/Libreboot.

Flip powered-off machine over and remove 8 philips-head screws. 2 are located under rubber feet.

atopuzov

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# The MIT License (MIT)

# Copyright (c) 2014 Aleksandar Topuzović <aleksandar.topuzovic@gmail.com>

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell