dotfiles

My dotfiles

Arch Linux

For faster pacman downloads during the initial bootstrap, uncomment the ParallelDownloads line in /etc/pacman.conf (with =):

sed -i 's/#ParallelDownloads = 5/ParallelDownloads = 5/g' /etc/pacman.conf

(update-system does this automatically afterwards.)

Do a basic install — make sure you include:

base base-devel linux linux-firmware nushell git iptables-nft sudo [amd-ucode|intel-ucode] pipewire neovim efivar efibootmgr networkmanager

Dotfiles Installation

mkdir -p ~/dev
git clone https://github.com/icub3d/dotfiles ~/dev/dotfiles
cd ~/dev/dotfiles
nu install.nu

install.nu symlinks the nushell config and then calls update-system, which installs paru, the packages listed in .selected_packages, and runs the matching packages/post-install/*.nu scripts.

Boot & Login Manager (systemd-boot & greetd)

We configure systemd-boot loader entries with specific PCIe performance profiles, standard system loglevels, and beautiful Catppuccin console (TTY) colors. In addition, we configure greetd with tuigreet as the login manager using a matching console theme that launches a niri session.

Configuration Files

• systemd-boot entry: /boot/loader/entries/arch.conf (sets kernel parameters and console palette)
• greetd greeter: /etc/greetd/config.toml (uses tuigreet configured to launch niri-session)

Helper Script

A dedicated helper script is provided at helpers/boot-login.nu to audit and apply these configurations safely.

🔍 Run status check / audit:

To check if your local configurations are active and in-sync with the repository:

nu helpers/boot-login.nu check

# Run with sudo to view full detailed kernel options and partition UUID audit:
sudo nu helpers/boot-login.nu check

⚙️ Apply configurations:

You can deploy the greetd configuration and the systemd-boot loader entry together or separately:

# Apply both configurations and check status (recommended)
sudo nu -c "use helpers/boot-login.nu; boot-login apply-all"

# Or apply them individually:
sudo nu -c "use helpers/boot-login.nu; boot-login apply-boot"
sudo nu -c "use helpers/boot-login.nu; boot-login apply-greetd"

Note

apply-boot dynamically auto-detects the root partition's UUID using findmnt. You can optionally override this by passing the --uuid parameter:

sudo nu -c "use helpers/boot-login.nu; boot-login apply-boot --uuid 'your-custom-uuid'"

Setup Git

Add this to ~/.gitconfig.local:

[user]
	name = Joshua Marsh (icub3d)
	email = joshua.marshian@gmail.com
	signingkey = [KEY]

If you want GitHub auth (gh is installed via the package manifests):

gh auth login
gh auth setup-git

Syncthing

• Enable syncthing

systemctl enable --now --user syncthing

• http://localhost:8384 > Actions > Show ID

• http://otherhost:8384 > Add Remote Device

• Back on http://localhost:8384 you'll eventually see a request that you can approve and then after a few seconds you'll also see the new shares that you can map.

3rd Monitor Not Working

I kept cycling the power (unplug from monitor) until it finally was recognized?!?!?

Firefox / Bitwarden Lag (Multi-GPU)

If you experience "bursty" typing lag in Firefox or Bitwarden popups on a multi-GPU setup (e.g., AMD + NVIDIA), it is likely due to the compositor trying to sync frames across GPUs.

The Fix:

1. Prioritize the AMD card for wlroots-based compositors in ~/.config/environment.d/wayland.conf:

WLR_DRM_DEVICES=/dev/dri/card1:/dev/dri/card0

• card1: Primary AMD GPU (7900 XTX)
• card0: Integrated AMD GPU
• Excluded card2: NVIDIA GPU (reserved for AI/CUDA)

2. For Niri (which uses the Smithay backend and ignores WLR_DRM_DEVICES), ignore the Nvidia GPU in ~/.config/niri/config.kdl:

debug {
    ignore-drm-device "/dev/dri/renderD130" // Nvidia GPU
}

GPU Helper Script: Use nu helpers/gpu.nu to check clocks and performance levels. If UI stuttering persists during video playback, you can force the AMD GPU into high-performance mode:

nu -c 'use helpers/gpu.nu; gpu set-perf high'

Docker Slow Stopping

sudo systemctl edit docker and add:

[Unit]
After=containerd.service
Wants=containerd.service

Firefox Theme

https://color.firefox.com/?theme=XQAAAAINAQAAAAAAAABBKYhm849SCia2CaaEGccwS-xMDPr6vjCkinuVw7Rh0WX8gM_c2TvB3-esAFTiupayP4GQLS2fI8oYy0uawh_8cVtu99eOYhDmnCmqQ8gsax812SPJeRBaP8FQlXs_t5GJqRtQcDC0dvNpFyxMhn5I7pdRo_WGVHACD5lUOjsRZECYOmTUC3L6m4McnTwSV2UXD0rdARNAQCEOTLz_kod6JZdDs1H0wDNLORmuPzQn-__Dpm7g

GUI Links

• Niri
• Niri Screencasting
• Noctalia