msfeldstein

import cv2
import numpy as np
from moviepy.editor import VideoFileClip, concatenate_videoclips

def is_red_pixel(pixel):
    blue,green,red = pixel
    return red > 200 and green < 100 and blue < 100

def process_image(image):
    # Convert image to BGR format as used by OpenCV

msfeldstein

{
   "nodes" : [
      {
         "distance" : 0,
         "heard" : 24205652,
         "node" : "GBFDG",
         "qset" : {
            "t" : 4,
            "v" : [ "sdf_watcher1", "eno", "tempo.eu.com", "sdf_watcher2", "sdf_watcher3" ]
         },

msfeldstein

### Keybase proof

I hereby claim:

  * I am msfeldstein on github.
  * I am feldstein (https://keybase.io/feldstein) on keybase.
  * I have a public key ASCT_UWljuCYnzIvc-DH9pb8jr-aq13ITEebiVKu0f4PvAo

To claim this, I am signing this object:

msfeldstein

date: 24-02-2019 title: How I used p2p protocols to make simpler and more resilient software

Lately I've been working on a project called dat-mirror which lets you mirror p2p websites you author from a computer with a persistent connection, such as a raspberry pi. One of the main issues with p2p and beaker browser is that if you publish from your laptop, as soon as you close your laptop your page becomes unavailable. dat-mirror keeps a copy served from your pi so your site will always be available, including over http for people on mobile, or who don't have beaker.

The first version of this worked ok, but had enough setup complications and runtime gotchas that it wasn't worth releasing. After reading this tutorial on p2p libraries I was able to re-architect a lot of this to be more resilient, flexible, and easier to set up.

Discovery

Without any p2p technology, the only way to connect to the da

msfeldstein

Persistent SSH Sessions with tmux

I use my raspberry pi exclusively over ssh. While it's great to be able to use my regular laptop to control my pi, ssh has some downsides:

• Difficult to start long-running processes
• Lose all your state when you close your laptop
• Need to re-ssh in every new tab

tmux is a terminal multiplexer which is a program that can manage terminal sessions for you. We can start a session on login of your pi, and then whenever we ssh in we can automatically connect to that same session. When you log out and re-connect, you'll get the same terminal windows with the same processes still running. Suddenly those problems are now features:

msfeldstein

Verifying my Blockstack ID is secured with the address 15MXt2XMepBQMhsDdmBYvdUJr5Rr3YYVis https://explorer.blockstack.org/address/15MXt2XMepBQMhsDdmBYvdUJr5Rr3YYVis

msfeldstein

### Keybase proof

I hereby claim:

  * I am msfeldstein on github.
  * I am feldstein (https://keybase.io/feldstein) on keybase.
  * I have a public key ASDJ1XIEsf7BCYW_nXQen7pjW1UDATSnvm7mvGoKj3lbxQo

To claim this, I am signing this object:

msfeldstein

function logThreeInstances(className) {
  threeTypeMap[className] = 0;
  
  const orig = THREE[className];
  const tmp = function() {};
  tmp.prototype = THREE[className].prototype;
  
  function newConstructor() {
    orig.apply(this, arguments)

msfeldstein

/**
 * Modified version of something Dubiously created by Adrian Cooney
 * http://adriancooney.github.io
 * adapted from https://github.com/adriancooney/console.snapshot
 */
(function(console) {
	function getBox(width, height) {
		return {
			string: "+",
			style: "font-size: 1px; padding: " + Math.floor(height/2) + "px " + Math.floor(width/2) + "px; line-height: " + height + "px;"

msfeldstein

var twgl = require('twgl.js')
var canvas = document.createElement('canvas')
document.body.appendChild(canvas)

const vtx = `
attribute vec4 position;

void main() {
  gl_Position = position;
}