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How to link to headings in GitHub issues and pull requests

If you have an issue comment / PR description on GitHub, it doesn't automatically get anchors / IDs that you could link to:

What I like to do is to add a visible # character like this:

Creating and managing an SSH session in the background

Sources:
https://stackoverflow.com/questions/2241063/bash-script-to-set-up-a-temporary-ssh-tunnel/15198031#15198031
https://lists.gt.net/openssh/dev/48040#48040

Starting an SSH session

$ ssh -M -S my-ctrl-socket -fnNT [email protected]

Install

# Install dependencies
sudo yum install -y java-1.8.0-openjdk screen

# Create a new unprivileged user for minecraft
useradd -r -m -d /opt/minecraft minecraft

# Create the directory that will house our minecraft instances

sudo su --shell /bin/bash minecraft

Below is the procedure to automate the ip ban of tor exit nodes with fail2ban.

Install fail2ban:

sudo apt install fail2ban

Create a new fail2ban jail (editing /etc/fail2ban/jail.local):

[tor]

云

IaaS指提供系统（可以自己选）或者储存空间之类的硬件，软件要自己手动装。PaaS提供语言环境和框架（可以自己选）。SaaS只能使用开发好的软件（卖软件本身，如税务会计、表格文字处理）。BaaS一般类似于非关系数据库，但各家不通用
云服务的特点：零前期成本 & 按需付费 & 弹性（类似于租，可随时多加、退掉；但没有残值）、高可用（放在机房中，不同AZ间水电隔离）

其他人的集合

https://education.github.com/pack GitHub学生包，需用教育邮箱验证。各种福利，可从DigitalOcean上手
https://github.com/ripienaar/free-for-dev 本文尽量不与此项目重复
https://free.zhelper.net/

Lecture 1: Introduction to Research — [📝Lecture Notebooks] [▶️Video]
Lecture 2: Introduction to Python — [📝Lecture Notebooks] [▶️Video]
Lecture 3: Introduction to NumPy — [📝Lecture Notebooks] [▶️Video]
Lecture 4: Introduction to pandas — [📝Lecture Notebooks] [▶️Video]
Lecture 5: Plotting Data — [📝Lecture Notebooks] [[▶️Vide

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.

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯

	" 24 simple pseudo-text objects
	" -----------------------------
	" i_ i. i: i, i; i\| i/ i\ i* i+ i- i#
	" a_ a. a: a, a; a\| a/ a\ a* a+ a- a#
	" can take a count: 2i: 3a/
	for char in [ '_', '.', ':', ',', ';', '<bar>', '/', '<bslash>', '*', '+', '-', '#' ]
	execute "xnoremap i" . char . " :<C-u>execute 'normal! ' . v:count1 . 'T" . char . "v' . (v:count1 + (v:count1 - 1)) . 't" . char . "'<CR>"
	execute "onoremap i" . char . " :normal vi" . char . "<CR>"
	execute "xnoremap a" . char . " :<C-u>execute 'normal! ' . v:count1 . 'F" . char . "v' . (v:count1 + (v:count1 - 1)) . 'f" . char . "'<CR>"
	execute "onoremap a" . char . " :normal va" . char . "<CR>"

	// A minimal example to reproduce a TSAN crash on calling vkCreateDevice on Linux/NVIDIA:
	// [...]
	// ThreadSanitizer:DEADLYSIGNAL
	// ==73756==ERROR: ThreadSanitizer: SEGV on unknown address 0x000000001048 (pc 0x560233ed6b07 bp 0x000000000010 sp 0x7f3ac37fe580 T73757)
	// ==73756==The signal is caused by a READ memory access.
	// [...]
	//
	// github issue: https://github.com/google/sanitizers/issues/1678
	// nvidia issue: https://developer.nvidia.com/bugs/4470250
	// tested on: Arch Linux 2024-01-19 with NVIDIA driver 545.29.06, clang 16.0.6