John Riggles / sudo whoami JRiggles

Ghostty Keyboard Shortcuts

Default keyboard shortcuts for Ghostty terminal emulator. Platform-specific differences are noted where applicable.

Window Management

Action	Windows/Linux	macOS
New window	Ctrl+Shift+N	Cmd+N
Close window	Alt+F4	Cmd+Shift+W

Using the CircuitPython native USB for serial data

I was trying to get some CP code to talk to Processing over a serial port interface. Of course, the CP REPL is normally available on whatever serial port the board mounts by default. This is a little complicated, because although you can use something like print from the REPL (or code.py) to print a value to the console, sys.stdin and sys.stdout are text-based streams, which may not be what you want. And you'll get REPL noise to boot. Not ideal.

This is where usb_cdc comes in. It's a handy library for managing the USB CDC (serial) on most CircuitPython boards. First, usb_cdc can be used to control how many serial ports CP will provide at startup. You can modify boot.py to make this work:

import usb_cdc

usb_cdc.enable(console=True, data=False)

	-- Utility functions for matrix.dot
	local function dotScalar1dVector(scalar, v1)
	local outputVector = {}
	for i = 1, #v1, 1 do
	outputVector[i] = v1[i] * scalar
	end
	return matrix(outputVector)
	end

	local function dotScalar2dVector(scalar, v1)

	Beginner-friendly GDScript 1 to GDScript 2 Conversion Guide

	First and foremost, this should not be considered a replacement for the official migration guide,
	found at https://docs.godotengine.org/en/latest/tutorials/migrating/upgrading_to_godot_4.html!
	Instead, this document is intended to be a friendly guide to helping you upgrade your projects from
	GDScript 1 to 2. To do this, I'm going to list the most common conversions I've run into while upgrading
	a few of my games and tools. This document is written as of the first release candidate version of Godot 4.0.

	The first thing to do when converting a project (no need if you're starting from new) is to either have your
	project in source control, or make a duplicate of your entire project's folder and rename it. This will

	## For a beginner-friendly version of the following (more advanced users likely will get better use of the below,
	## if you're just starting out...), see this new gist:
	## https://gist.github.com/WolfgangSenff/0a9c1d800db42a9a9441b2d0288ed0fd


	This document represents the beginning of an upgrade or migration document for GDScript 2.0 and Godot 4.0. I'm focusing on 2D
	at the moment as I'm upgrading a 2D game, but will hopefully have more to add for 3D afterward.

	## If you want more content like this, please help fund my cat's medical bills at https://ko-fi.com/kyleszklenski - thank you very much! On to the migration guide.

	import requests
	from tqdm import tqdm


	def download(url: str, fname: str, chunk_size=1024):
	resp = requests.get(url, stream=True)
	total = int(resp.headers.get('content-length', 0))
	with open(fname, 'wb') as file, tqdm(
	desc=fname,
	total=total,

	#!/bin/bash

	# This is a quick installer
	# script I made to build and install the latest version of
	# fish on my Raspberry Pi.
	#
	# Use at your own risk as I have made no effort to make
	# this install safe!

	set -e

	"workbench.colorCustomizations": {
	// Contrast Colors - The contrast colors are typically only set for high contrast themes. If set, they add an additional border around items across the UI to increase the contrast.
	"contrastActiveBorder": "",
	"contrastBorder": "",
	// Base Colors
	"focusBorder": "",
	"foreground": "",
	"widget.shadow": "",
	"selection.background": "",
	"descriptionForeground": "",

	from PIL import Image
	from pathlib import Path
	import random


	def gray_value(r, g, b):
	return 0.2989 * r + 0.5870 * g + 0.1140 * b


	def filter_2x2_bayer(image_file, threshold):

	from ctypes import windll
	from ctypes import byref as ctypes_byref
	from ctypes.wintypes import MSG as wintypes_MSG
	import win32con


	class GlobalHotKeys(object):

	key_mapping = []
	user32 = windll.user32