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A concise comparison of operating systems. Some focus on root-on-ZFS, and on Plasma. Not intended to be comprehensive.

Describing availability is not necessarily a recommendation to install what's available.

The systems

• FreeBSD
• GhostBSD

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using UnityEngine;
using Math = System.Math;

public static class NearestPointTo
{
    /// <summary>
    /// Find the closest point on an ellipse centered on the origin.
    /// </summary>
    /// Credit:
    ///     2015-09     Original Paper          by Luc. Maisonobe   https://www.spaceroots.org/documents/distance/distance-to-ellipse.pdf

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How to run FreeBSD 13.0-BETA1 for ARM64 in QEMU on Apple Silicon Mac (MacBook Pro M1, etc)

This guide was adapted from https://gist.github.com/niw/e4313b9c14e968764a52375da41b4278#running-ubuntu-server-for-arm64

Running FreeBSD 13.0-BETA1 for ARM64

1. Install Xcode from App Store or install Command Line Tools on your Mac running on Apple Silicon.

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The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

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OpenVPN on Ubuntu 12.10 at DigitalOcean

Install OpenVPN

sudo apt-get install openvpn

Generate Server Certificates

sudo cp -r /usr/share/doc/openvpn/examples/easy-rsa/2.0 /etc/openvpn/easy-rsa2

cd /etc/openvpn/easy-rsa2

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fj() {
    pbpaste | python -mjson.tool | pygmentize -f terminal256 -l javascript -O style=native
}

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require 'formula'

class TmuxIterm2 < Formula
  url 'http://iterm2.googlecode.com/files/iTerm2-1_0_0_20130310.zip'
  sha1 '2f927c6b963820c4161306be1392391712d15464'
  
  head 'git://tmux.git.sourceforge.net/gitroot/tmux/tmux'

  depends_on 'pkg-config' => :build
  depends_on 'libevent'

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ArchLinux on a Raspberry Pi

Install the system to the SD card

Connect the SD card to your computer and open the terminal.

• Find the disk id

df -h

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// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

// requestAnimationFrame polyfill by Erik Möller
// fixes from Paul Irish and Tino Zijdel

(function() {
    var lastTime = 0;
    var vendors = ['ms', 'moz', 'webkit', 'o'];
    for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {

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# Add speex, for Red5
brew edit ffmpeg
args << "--enable-libspeex" if Formula.factory('speex').installed?

brew install --use-gcc ffmpeg

# H.264 / ACC
ffmpeg -i video.flv -acodec libfaac -ab 19k -ar 16000 -vsync 1 -async 1 -r 25.0 -b 193k -vcodec libx264 -s 420x340 video.mp4

# VP8 / Vorbis