Dr. Christian Geuer-Pollmann chgeuer

Cornix Keyboard Build Guide

Complete setup guide for building ZMK firmware for the Cornix split ergonomic keyboard on Arch Linux.

Fresh Arch Linux Setup

1. Install Required Packages

# Core development tools and dependencies
sudo pacman -S base-devel git cmake ninja dtc python python-pip wget xz dfu-util

Rendevouz hashing

Mix.install([
  {:combination, "~> 0.0.3"}
], consolidate_protocols: false)

Section

Visualize primary and replicas (inspired by Waterpark)

Mix.install([
  {:kino, "~> 0.16.1"}
], consolidate_protocols: false)

Library modules

Enroll TS3

boltctl enroll --policy=auto --chain cd010000-0070-6d18-234c-b38ed643e102

`/boot/loader/entries/linux-ts4.conf`

title   Arch Linux (TS3 support)
linux   /vmlinuz-linux
initrd  /initramfs-linux.img

Entra Domains

Mix.install([
  {:req, "~> 0.5.8"}
])

Libraries

Postgrex on Azure: How to connect to an Azure PostgreSQL DB from Elixir

Mix.install([
  {:x509, "~> 0.8.10"},
  {:postgrex, "~> 0.19.3"},
  {:req, "~> 0.5.7"},
  {:livebook_env, "~> 1.0"},
  {:kino, "~> 0.14.2"}
])

A simple .NET Core 8 sample running on Linux to show AES GCM encryption...

using System.Security.Cryptography;
using System.Text;

// https://learn.microsoft.com/en-us/dotnet/standard/security/cross-platform-cryptography#authenticated-encryption
Console.Out.WriteLine($"Is supported: {AesGcm.IsSupported}");

	IO.puts("Using .iex.exs file loaded from #{__DIR__}/.iex.exs")

	defmodule Util do
	def iex(n), do: IEx.Helpers.v(n)

	def atom_status do
	limit = :erlang.system_info(:atom_limit)
	count = :erlang.system_info(:atom_count)
	IO.puts("Currently using #{count} / #{limit} atoms")
	end

	/*
	<Project Sdk="Microsoft.NET.Sdk">
	<PropertyGroup>
	<OutputType>Exe</OutputType>
	<TargetFramework>net8.0</TargetFramework>
	<ImplicitUsings>enable</ImplicitUsings>
	<Nullable>enable</Nullable>
	</PropertyGroup>
	<ItemGroup>
	<PackageReference Include="Microsoft.Identity.Client" Version="4.64.0" />

	# Quake III algorithm - Fast inverse square root using binary pattern matching

	```elixir
	Mix.install([
	{:kino, "~> 0.17.0"}
	])
	```

	## Section