Reproducable, flashable, updateable Raspberry Pi Images with NixOS

Fri, 16 Jan 2026 07:30:00 -0600

A lot of my knowledge laid out here would not be possible without the insight from Nixcademy and their blog series on NixOS images. Please check out the linked blog for more information on this topic. The code in this article is heavily inspired by or reused from that post.

I hope to add a little more to this topic by showing how to achieve a UEFI-based image for a Raspberry Pi. I also want to practice my technical writing skills for this article.

Setting up External Monitor Brightness Controls on Arch Linux

Thu, 29 Oct 2020 16:30:00 -0600

This will be the first technical post on my website. I will use this post to describe the process in setting up external brightness control in Sway on Arch Linux.

Background

Kernel 5.9 added improved I2C support to Navi 10 cards¹, which include the Radeon RX 5600XT. Using I2C in combination with ddcutil can allow us to control an external monitors brightness using commands.

Using ddcutil

Detecting Monitors

First we need to make sure that the i2c-dev module is loaded into the system; In my case, it was loaded automatically. We now want to identify the monitors:

Linux on Lyndon Sanche

Reproducable, flashable, updateable Raspberry Pi Images with NixOS

Setting up External Monitor Brightness Controls on Arch Linux

Background

Using ddcutil

Detecting Monitors