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Switch from RVM to rbenv:

Get Rid of RVM if it's installed:

rvm implode

Cleanup your .bash_profile/.bashrc/.zshrc file to remove RVM from the path:

You should have something like this left from RVM. Delete it from the file. ``[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"```

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Create a safe way to shutdown a headless raspberry pi with a tiny button.

1. Make the button:

• Cut a female-female jumper cable in half.
• Strip the ends and solder each to one pin on one side of the button.
• Clip off the pins on the other side of the button.
• Plug ends into 1 ground and 1 GPIO pin on your pi. I used GPIO #12 & the ground next to it.

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/*
	Instructions for MacOS:

	- Install the fonts 'Operator Mono' & 'Fira Code'
	- Install theme 'Dark Candy'
	- Add the following config to the VS Code settings.json:

	{
	  "editor.renderWhitespace": "all",
	  "editor.fontSize": 14,

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How to Create a Guestbook for Your Github Personal Readme!

To create a "guestbook", like this we can use the image hosting & commenting abilities of Github Gists ftw! ✨

Create a Gist to Host Your Guestbook & Image

1. Log into Github

2. Go to https://gist.github.com

3. Select "+" in the top right corner of the toolbar to create a new gist and save it as public gist.

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# update system
$ sudo apt update && sudo apt upgrade

# uninstall old node (v10?)
$ sudo apt remove nodejs npm -y

# install nvm
$ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.2/install.sh | bash

# use 'unofficial builds' in nvm

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#########################
  # config/initializers/doorkeeper.rb
#########################

Doorkeeper.configure do
  # Change the ORM that doorkeeper will use.
  # Currently supported options are :active_record, :mongoid2, :mongoid3, :mongo_mapper
  orm :active_record

  # This block will be called to check whether the resource owner is authenticated or not.

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Get file off RPI:

scp pi@rpi3.local:~/tfjs-yolo-tiny/demo/test.jpg ~stephanie/Desktop

Serial Ports

Disable console on serial ports:

1. sudo raspi-config
2. Select option 5, Interfacing options, then option P6, Serial, and select No. Exit raspi-config.

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How to Use cURL to Test Rails controller actions:

-X [action]:

• Allows you to specify an HTTP action such as GET, POST, PUT or DELETE.

• Example:
  curl -X DELETE 'http://accounting.dev/v1/refunds/1'

-d [parameter]:

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Setup ruby on rails:

https://gorails.com/setup/osx/10.15-catalina

Running Postgresql

To migrate existing data from a previous major version of PostgreSQL run: brew postgresql-upgrade-database

To have launchd start postgresql now and restart at login: brew services start postgresql