givanse

Raspberry Pi 🖥

• Raspberry Pi 4 Model B 4GB $96.99
  • Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• 16GB Ultra MicroSD $8.52
• MicroSD adapter $7.19 (only if your computer doesn't have an SD reader)
• Pimoroni Fan Shim for Raspberry PI $21.20
• 1TB Internal SSD $84.99
• HDD/SSD Expansion Board X825 V2.0 $29.69
• Metal Case - Support X825 V2.0 Shield $26.99

givanse

#!/usr/bin/python
# coding=utf-8

import time
import datetime
from math import pi

M1 = 8.6
M1short = 1.075
M1long = 2.15

givanse

Energy

• https://github.com/libbitcoin/libbitcoin/wiki/Energy-Waste-Fallacy
• Bitcoin Transactions and Energy - Unpacking A Common Fallacy

  • Bitcoin energy consumption will scale proportionally to the amount of transactions that the Bitcoin network has to process — right? Wrong.

  • “I keep reading that Bitcoin energy usage has increased over this past year!” the cause here is entirely economic.

• Stop worrying about how much energy bitcoin uses
• Bitcoin vs Banks: Which Uses More Energy?
• > we get approximately 100 or so terawatts of power consumed by banks each year. Clearly, this pales in comparison to the 25-30 terawatts Bitcoin consumes.

givanse

browser automation tools

selenium webdriver.io - manages the selenium session nightwatch js - selenium phantom js - development suspended, headless browser casper js - navigation scripting for phantom js and slimer js nightmare js - uses electron slimer js - like phantom js, based on firefox

givanse

Use them to avoid doing this:

this.list = [];
const self = this;
function callback() {
  self.list;
}
someAsyncFunction(callback);

givanse

#! /usr/bin/env python

# For this script to work you have to install `p4` (Helix command line client)

# This script will tell you if you have local files that are not part of the depot.
#
# Usage example:
#     tools$ p4-local-status.py
#     folder: tools
#     p4-local-status.cmd - no such file(s).

givanse

import Ember from 'ember';

export default Ember.Component.extend({
  
  classNames: ['rich-and-complex']
  
});

givanse

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['child_component'],
  tagName: 'button',
  actions: {
    doSomething: function() {
      alert('child: did something');
    }
  }

givanse

Install Homebrew

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install Node through nvm

# the script setup-node.sh is available within this gist

givanse

import Ember from 'ember';

const TodoItem = Ember.Object.extend({
  completed: false
});

export default Ember.Controller.extend({
  
  value: '',