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1Password SSH Agent Forwarding for Devcontainers

Use 1Password's SSH agent to sign Git commits inside VS Code devcontainers across macOS, Linux, and Windows.

Quick Start

1. Read the full guide: 1password-ssh-devcontainer-guide.md
2. Configure your host to use 1Password's SSH agent

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#! /usr/bin/env ruby

require 'httparty'
require 'json'
require 'pry'

class PerplexityClient
  include HTTParty
  base_uri 'https://api.perplexity.ai'
  API_KEY = "YOULL_HAVE_TO_GET_ONE_OF_YOUR_OWN"

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Brute Force Pi Calculation

Making use of the observation that Pi is the area of a circle with diameter equal to one, a brute force calculation of Pi would be to:

1. randomly generate points in a square
2. count the points within the circle and the total number of points
3. multiple the ratio of points in the circle to total number of points by the area of a square with a side the length of the diameter of the circle (in this case two (2))

Usage

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Ubuntu 22.04.1 LTS running on MacBook Pro 13,2

Troubleshooting "no sound" issue.

Resources

1. Ubuntu Forums: "Audio device detection doesnt work properly"

Next Steps:

• https://github.com/fwupd/fwupd/wiki/PluginFlag:capsules-unsupported (See: fwupdmgr get-devices output.)

Config: /etc/modprobe.d/alsa-base.conf

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Spelling Bee

NYT Spelling Bee solver written in Ruby. It should work fine on any BSD/Linux/Unix system with Ruby installed.

Running the code

In a terminal:

git clone git@gist.github.com:3488d03f298cef55289bc899e79e18a3.git spelling_bee
cd spelling_bee
irb -r ./spelling_bee.rb

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Single Page Rails App

Credit to @GregMolnar.

Run the app

This has only been tested with Ruby 3.1.2. YMMV.

rackup app.ru

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file_name = 'errors.sql'
error_number = 50_001

lines = IO.readlines(file_name)
lines.each_with_index do |line, index|
  next unless line[/99999/]

  lines[index] = line.gsub('99999', error_number.to_s)
  error_number += 1
end

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require 'octokit' # (See: https://github.com/octokit/octokit.rb)

# (See: https://github.com/settings/tokens OR https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token)
personal_access_token = 'ghp_1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
client = Octokit::Client.new(access_token: personal_access_token)
client.auto_paginate = true

repo_name = 'foo/bar'
releases = client.releases(repo_name)

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RSpec Demo

In this demo we will:

• Learn why testing is important
• Learn about testing "philosophies"
• Learn how RSpec makes testing "productive and fun" including:
  • Units specs (Models: "M")
  • Request & Routing specs (Controllers: "C")
  • View specs (Views: "V")
• System specs (Models, Views & Controllers: "MVC")

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ActionController Demo

In this demo we will:

• Review a bit about the "M" and "V" parts of MVC
• Learn how to debug our code with Pry
• Learn about the essential parts of a Rails controller including:
  • Actions/Methods
  • Parameters including Strong Parameters
  • Filters
  • Flash (with Cookies & Sessions)