njam

# Measure traffic with tcpstat
tcpstat -i em1 -o "%r\t%b\n" -s 30 0.1 > traffic.txt

# Create plot using the below script
gnuplot traffic.script > traffic.png

# Display plot
qlmanage -p 2>/dev/null traffic.png

njam

Q: How big is the blockchain today?
A: 415'000 blocks, 70 Gigabytes.

Q: Where is the blockchain stored?
A: On all the nodes participating in the Bitcoin p2p network.
   Implicit consensus is achieved by all nodes following the same rules (and incentives).

Q: What kind of encryption is Bitcoin using?
A: none (rather hashing and signing).

njam

var GitHubApi = require('github');
var assert = require('assert');

var org = 'cargomedia';
var token = '<github-token>';

var api = new GitHubApi({
  version: '3.0.0',
  protocol: 'https',
  headers: {'user-agent': 'repo-lister'}

njam

(function($) {
	function visible(element) {
		return $.expr.filters.visible(element) && !$(element).parents().addBack().filter(function() {
			return $.css(this, 'visibility') === 'hidden';
		}).length;
	}

	function focusable(element, isTabIndexNotNaN) {
		var map, mapName, img, nodeName = element.nodeName.toLowerCase();
		if ('area' === nodeName) {