Jussi Räsänen jrasanen

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

Emscripten as a linker for Zig and C

This shows how to build a nontrivial program using Zig+Emscripten or C+Emscripten. In both cases Emscripten is only used as a linker, that is the frontend is either zig or clang.

"Nontrivial" here means the program uses interesting Emscripten features:

Asyncify
Full GLES3 support
GLFW3 support

A simple overview of Zig's `std.log` for Zig v0.12.0 or higher

Logging functionality that supports:

If a log message should be printed is determined at comptime, meaning zero overhead for unprinted messages (so just leave the code peppered with debug logs, but when it makes sense scope them; so downstream users can filter them out)
Scoped log messages
Different log levels per scope
Overrideable log output (write to file, database, etc.)
All the standard std.fmt formatting magic

Basic Usage:

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

Update 2

As of August 28th, 2025, Expert LSP has been released: https://github.com/elixir-lang/expert

Although still a work in progress, the plan is for the other three LS implementations to be archived. I may try to come up with a new way to track Expert's featureset, but I would probably contribute that back to Expert as documentation.

Update

As of August 15, 2024, it's been announced that the three projects bein compared here will soon merge! See the official Elixir blog post for more details: https://elixir-lang.org/blog/2024/08/15/welcome-elixir-language-server-team/

	// ==UserScript==
	// @name Slack filter messages by UID
	// @namespace Slack
	// @version 0.1
	// @description removes messages from unwanted people in slack channels and threads, or replaces them with kittens
	// @author Octaharon <Alexander Uskov>
	// @include https://app.slack.com/client/*
	// @grant none
	// ==/UserScript==

	#! /bin/bash
	cd /
	set -eu

	# find path to liblzma used by sshd
	path="$(ldd $(which sshd) \| grep liblzma \| grep -o '/[^ ]*')"

	# does it even exist?
	if [ "$path" == "" ]
	then

	<your-ticket-prefix>
	# Subject Line
	# ======================================================================
	#
	# One line less than 72 characters in length. Generally focused on the
	# "What" rather than the "Why".
	#
	# Format <tag>: <message>
	#
	# `tag`: can be either a defined list of tags like "Add", "Remove",