Pedro Lara Campos PedroHLC

I'd just like to interject for a moment. What you're referring to as the NixOS stable branch, is in fact, duplication of efforts that should go into nixos-unstable, or as I've recently taken to calling it, the QA mirage.

The stable branch is not a proper, long-term supported component unto itself, but rather a temporary, five-month snapshot of nixos-unstable made functionally useless by the lack of additional tests and the fact that no extra QA is run compared to unstable. All the backporting effort is trashed when the next stable branch is cut from a fresh, future point in nixos-unstable.

Through a peculiar turn of events, the branch widely considered "stable" today is often just called "stable," and many of its users are not aware that it is basically the same system, but one that actively wastes the community's time by forcing them to re-land fixes on a branch that will soon be deprecated. There really is a stable branch, and these people are using it, but it is just a *

Nix (uppercase N): a Domain-specific language with meta language roots;
nix (lowercase N): a CLI toolkit developed by NixOS Foundation which core's to evaluating Nix;
Nix's ecossystem (Written with Nix or using nix):
- Nixpkgs: repository of all united efforts related to packaging programs and creating a system to run them;
- NixOS: a Linux-distro, subproduct of Nixpkgs;
- Home-manager: a dotfiles manager using Nixpkgs;
- Impermanence: Immutable RootFS for NixOS;
- Flake: Declarative description (artifacts and depedencies) for Nix's projects (our take on NPM's package.json);
Anything else under github:NixOS, under github:nix-community, public repositories with a /flake.nix, or public repositories with a /default.nix.

Ran on /tmp (with useTmpfs), where the files are, and directly from TTY1 (without any DE running).

Shell A: nix shell nixpkgs#hyperfine nixpkgs#ffmpeg-headless
Shell B: nix shell nixpkgs#hyperfine chaotic#pkgsx86_64_v3.ffmpeg-headless
Benchmark parameter: hyperfine -w 3 -M 10
Benchmark command: ffmpeg -threads 1 -y -i 01._Radio_Ga_Ga.flac -f ogg /dev/null

	#!/usr/bin/awk -f
	# from https://forums.rockylinux.org/t/el9-will-require-x86-64-v2-support/5311
	BEGIN {
	while (!/flags/) if (getline < "/proc/cpuinfo" != 1) exit 1
	if (/lm/&&/cmov/&&/cx8/&&/fpu/&&/fxsr/&&/mmx/&&/syscall/&&/sse2/) level = 1
	if (level == 1 && /cx16/&&/lahf/&&/popcnt/&&/sse4_1/&&/sse4_2/&&/ssse3/) level = 2
	if (level == 2 && /avx/&&/avx2/&&/bmi1/&&/bmi2/&&/f16c/&&/fma/&&/abm/&&/movbe/&&/xsave/) level = 3
	if (level == 3 && /avx512f/&&/avx512bw/&&/avx512cd/&&/avx512dq/&&/avx512vl/) level = 4
	if (level > 0) { print "CPU supports x86-64-v" level; exit level + 1 }
	exit 1

	#!/usr/bin/env node
	/* Author: Pedro H L Campos <https://keybase.io/pedrohlc>
	License: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
	*/
	const { Source, buildSchema, buildClientSchema, getIntrospectionQuery, printSchema, validate, parse } = require('graphql');
	const fs = require('fs');

	async function main(stdin, argv) {
	// Remove interpreter and script
	argv.shift();

	{
	"nodes": {
	"chaotic": {
	"inputs": {
	"flake-schemas": "flake-schemas",
	"home-manager": "home-manager",
	"jovian": "jovian",
	"nixpkgs": "nixpkgs"
	},
	"locked": {

	# This file is automatically @generated by Cargo.
	# It is not intended for manual editing.
	version = 3

	[[package]]
	name = "addr2line"
	version = "0.21.0"
	source = "registry+https://github.com/rust-lang/crates.io-index"
	checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
	dependencies = [

	#!/usr/bin/env bash
	set -euo pipefail
	LAUNCH_SEARCHING="$1"
	exec $(awk '/^Exec=/{sub(/^Exec=/, ""); print $1}' $(echo -n "$XDG_DATA_DIRS" \|\
	xargs -d ':' -ri \
	find -H '{}/applications/' -iname "${LAUNCH_SEARCHING}*.desktop" 2>/dev/null \|\
	head -n 1))