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@kwilczynski
kwilczynski / disable-ipv6.sh
Last active December 22, 2025 00:41
Amazon Linux OS tweaks
#!/bin/bash
set -u
set -e
set -o pipefail
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
cat <<'EOF' > /etc/modprobe.d/blacklist-ipv6.conf
@vasanthk
vasanthk / System Design.md
Last active May 13, 2026 17:12
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@graymouser
graymouser / hb_all_books_dl.js
Created February 28, 2016 14:09
Humble bundle book bundles - download all books at once
/*
After purchasing a humble book bundle, go to your download page for that bundle.
Open a console window for the page and paste in the below javascript
*/
$('a').each(function(i){
if ($.trim($(this).text()) == 'MOBI') {
$('body').append('<iframe id="dl_iframe_'+i+'" style="display:none;">');
document.getElementById('dl_iframe_'+i).src = $(this).data('web');
}
});
@darkgeek
darkgeek / openbsd_xorg_on_virtualbox
Created May 14, 2016 13:19
Better Xorg resolution for OpenBSD as a guest on Virtualbox
# Get from https://www.snip2code.com/Snippet/619307/OpenBSD-Virtualbox-guest-xorg-conf , thanks!
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/X11R6/lib/modules"
@ktzar
ktzar / index.md
Created May 30, 2016 20:18
Why Most Unit Testing is Waste

Why Most Unit Testing is Waste

By James O Coplien from http://rbcs-us.com/documents/Why-Most-Unit-Testing-is-Waste.pdf

1.1 Into Modern Times

Unit testing was a staple of the FORTRAN days, when a function was a function and was sometimes worthy of functional testing. Computers computed, and functions and procedures represented units of computation. In those days the dominant design process composed complex external functionality from smaller chunks, which in turn orchestrated yet smaller chunks, and so on down to the level of well-understood primitives. Each layer supported the layers above it. You actually stood a good chance that you could trace the functionality of the things at the bottom, called functions and procedures, to the requirements that gave rise to them out at the human interface. There was hope that a good designer could understand a given function’s business purpose. And it was possible, at least in well-structured code, to reason about the calling tree. You could mentally simulate

@jkoelker
jkoelker / gaming
Last active October 17, 2025 19:34
Enable or Disable the Touchpad while typing via libinput `xinput` (aka. libinput "gaming" mode)
#!/bin/sh
#
# libinput by default will disable the touchpad while a key is pressed.
# to disable this, run `xinput` to list the inputs. find the name of your
# touchpad (mine is 'Microsoft Surface Keyboard Touchpad').
#
# Disable the setting 'Disable While Typing Enabled'
# `xinput --set-prop 'Microsoft Surface Keyboard Touchpad' \
# 'libinput Disable While Typing Enabled' 0`
#
@andrewelkins
andrewelkins / install-docker-on-linux-mint-18.sh
Last active February 2, 2020 21:53
Install Docker on Linux Mint 18
##########################################
# To run:
# curl -sSL https://gist.githubusercontent.com/andrewelkins/1adc587feb610f586f8f40b50b7efc3a/install-docker-on-linux-mint-18.sh | bash -x
##########################################
# Kernel version http://stackoverflow.com/a/4024263
versionlte() {
[ "$1" = "`echo -e "$1\n$2" | sort -V | head -n1`" ]
}
versionlt() {
@Richard-Mathie
Richard-Mathie / Redis Cluster Setup with Docker Swarm.md
Last active May 11, 2022 12:58
Redis cluster setup with docker swarm

Redis Cluster Setup with Docker Swarm

Setup

./redis.sh

Test

test the redis cluster

@jatcwang
jatcwang / gist:ae3b7019f219b8cdc6798329108c9aee
Created February 2, 2017 23:44
List of all setxkbmap configuration options (including models/layout/etc)
! model
pc101 Generic 101-key PC
pc102 Generic 102-key (Intl) PC
pc104 Generic 104-key PC
pc105 Generic 105-key (Intl) PC
dell101 Dell 101-key PC
latitude Dell Latitude series laptop
dellm65 Dell Precision M65
everex Everex STEPnote
flexpro Keytronic FlexPro
@jhwheeler
jhwheeler / bigONotation.js
Last active April 28, 2026 10:01
Big O Notation Exercises
// 1. Even or odd
function isEven(value){
if (value % 2 == 0){
return true;
}
else
return false;
}