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Common zsh Keyboard Shortcuts on macOS

Navigation

CTRL + A : Move the cursor to the beginning of the line
CTRL + E : Move the cursor to the end of the line
OPTION + Left Arrow : Move the cursor one word backward
OPTION + Right arrow : Move the cursor one word forward
Left Arrow : Move the cursor one character backward
Right Arrow : Move the cursor one character forward

Font Configuration in Linux

A computer font (or font) is an electronic data file containing a set of glyphs, characters, or symbols such as dingbats.

Most computer fonts used today are in either bitmap(BDF) or outline data(otf/ttf) formats.

Many non-English users have problems with their language's rendering, at least Persian users have problems with viewing Persian charactars that can happen because:

Proper fonts are not installed/found by fontconfig. Click here
Fontconfig order is wrong and the latin fonts are above Persian fonts and don't have a good support that causes problems. Click Here

Notes

Hurdles of macOS distribution

Code signing
Notarization
Quarantine
Distribution vehicles
Notes

Code signing

Longhorn best practices

The following settings are provided as an example how longhorn should be configured in a production cluster, especially if it is deployed on Hetzner Cloud infrastructure.

Hetzner server nodes provide local storage and allow up to five attached volumes (with a size of up to 10TiB each) Local storage is provided by NVMe storage and therefore is much faster than the attached volumes, but limited in size (max 300GiB usable).

It is assumed that the cluster creation is already done, e.g. via terraform scripts provided by the great kube-hetzner project.

Initial configuration

This notes is written by Sheldon. You can find me with #iOSBySheldon in Github, Youtube, Facebook, etc.

Need

Convert .mov/.MP4 to .gif

Reason

As a developer, I feel better to upload a short video when I create the pull request to show other viewers what I did in this PR. I tried .mov format directly got after finishing recording screen using Quicktime, however, gif offers preview in most web pages, and has smaller file size.

This is not limited to developer, anyone has this need can use this method to convert the files.

	<?xml version="1.0"?><!DOCTYPE fontconfig SYSTEM "fonts.dtd">
	<fontconfig>
	<dir>~/.fonts</dir>
	<!--
	Documented at
	http://linux.die.net/man/5/fonts-conf

	To check font mapping run the command at terminal
	$ fc-match 'helvetica Neue'

	"""
	Classic cart-pole system implemented by Rich Sutton et al.
	Copied from http://incompleteideas.net/sutton/book/code/pole.c
	permalink: https://perma.cc/C9ZM-652R

	Continuous version by Ian Danforth
	"""

	import math
	import gym