Tim Sonner timsonner

# see if the footgun is back
cat /etc/modprobe.d/brcmfmac.conf

# if it sets feature_disable=0x82000, clear it:
sudo sed -i '/feature_disable/d' /etc/modprobe.d/brcmfmac.conf
# or empty/remove that file if that's all it contains

sudo modprobe -r brcmfmac brcmutil 2>/dev/null
sudo modprobe brcmfmac

Arch XFCE Desktop over RDP with WSL Containers (`wslc`)

Install guide for running a full Arch Linux XFCE desktop inside a WSL container, accessed via RDP from Windows.

Adapted from the Podman version of this guide.

Prerequisites

Arch XFCE Desktop over RDP with Podman
Install guide

0. Prepare the host

You need Podman (to run the container) and an RDP client (to connect to it).

sudo apt update

Cockpit — VM & Podman support

Quick install reference for this host (Ubuntu).

Install

Core + Virtual Machines (libvirt)

sudo apt update

One-liners to limit ZFS ARC (live + permanent) so it doesn’t eat most of your RAM next to KVM/libvirt guests. Defaults leave arc_max uncapped; 4–8 GB is a good desktop/VM ceiling.

Live:

# 8 GB ZFS ARC Cache
echo $((8 * 1024 * 1024 * 1024)) | sudo tee /sys/module/zfs/parameters/zfs_arc_max

# 4 GB ZFS ARC Cache

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Python module commands

1. Installed packages

Show what pip has installed in the current environment:

python3 -m pip list

	#!/usr/bin/env bash
	set -euo pipefail
	cp /tmp/mba91-trackpad-fix/local-overrides.quirks /etc/libinput/local-overrides.quirks
	cp /tmp/mba91-trackpad-fix/61-apple-t2-trackpad-internal.hwdb /etc/udev/hwdb.d/61-apple-t2-trackpad-internal.hwdb
	systemd-hwdb update
	udevadm trigger -s input
	echo "Installed. Re-login or restart Hyprland for libinput to fully re-open the device."

	#!/usr/bin/env bash

	# --- 1. Disable MOTD News ---
	systemctl stop motd-news.timer motd-news.service
	systemctl disable motd-news.timer
	chmod -x /etc/update-motd.d/50-motd-news

	if [ -f /etc/default/motd-news ]; then
	sed -i 's/^ENABLED=1/ENABLED=0/' /etc/default/motd-news
	fi

	#!/usr/bin/env bash
	# Fix NVIDIA RTX 3050 Mobile on Ubuntu 26.04 (XPS 15 9520)
	# Root causes found:
	# 1) GRUB has nomodeset -> disables KMS (i915 + nvidia-drm)
	# 2) DKMS nvidia modules signed with a private key obscure Canonical-signed modules
	# 3) Secure Boot is ON and MOK only has Canonical CA -> DKMS modules cannot load
	# 4) Partial server/headless stack installed instead of full desktop driver
	set -euo pipefail

	if [[ ${EUID:-$(id -u)} -ne 0 ]]; then