homelab/infrastructure/graduated/arch/README.md

# Arch Base

This is the base configuration from which you can build a variety of systems. Right now
I have instructions for building a:

1. [Workstation](workstation.md)
2. [Gaming PC](gaming.md)
3. [Kubernetes Server](server.md)

## Table of Contents

- [Arch Base](#arch-base)
  - [Table of Contents](#table-of-contents)
  - [Installation](#installation)
    - [Preparation](#preparation)
    - [Installation](#installation-1)
    - [Gnome Keyring](#gnome-keyring)
    - [Base Tools](#base-tools)
    - [ZSH](#zsh)
    - [Prompt Themes](#prompt-themes)
    - [AUR](#aur)
    - [Security](#security)
      - [Secure Boot](#secure-boot)
      - [TPM2 LUKS Decryption with Secure Boot](#tpm2-luks-decryption-with-secure-boot)
        - [Re-enroll](#re-enroll)
      - [FIDO2 LUKS Decryption](#fido2-luks-decryption)
      - [Firewall](#firewall)
      - [ClamAV](#clamav)
      - [btrbk](#btrbk)
        - [fstab](#fstab)
        - [Snapshots](#snapshots)
        - [Backups](#backups)
        - [Backing up a snapshot](#backing-up-a-snapshot)
      - [Chroots](#chroots)
      - [Fingerprint Reader Support](#fingerprint-reader-support)
        - [Setup](#setup)
        - [Turn Off Fingerprint When Laptop Lid Closed](#turn-off-fingerprint-when-laptop-lid-closed)
  - [Hardware Management](#hardware-management)
    - [Power Profiles](#power-profiles)
    - [Color Management](#color-management)
    - [Washed out colors with power-profiles-daemon](#washed-out-colors-with-power-profiles-daemon)
    - [Hardware Acceleration](#hardware-acceleration)
    - [Don't sleep while plugged in](#dont-sleep-while-plugged-in)
    - [Bluetooth](#bluetooth)
    - [Audio](#audio)
  - [Software Stores](#software-stores)
    - [AppImage Support](#appimage-support)
      - [Troubleshooting](#troubleshooting)
    - [Flatpak](#flatpak)
  - [Apps](#apps)
    - [Firefox](#firefox)
      - [Gnome Extensions](#gnome-extensions)
    - [Avahi (Bonjour)](#avahi-bonjour)
    - [CUPS Printing](#cups-printing)

## Installation

### Preparation

Follow most of the instructions here:
<https://wiki.archlinux.org/title/Installation_guide>

1. Download Arch
2. Verify the image

    ```bash
    gpg --auto-key-locate clear,wkd -v --locate-external-key pierre@archlinux.org
    gpg --keyserver-options auto-key-retrieve --verify archlinux-...
    ```

3. Create a bootable ISO

    1. If you are booting into a VM, create an ISO with installation files so you don't have to copy-paste:

        ```bash
        sudo pacman -S cdrtools
        mkisofs -r -iso-level 4 -l -o /tmp/arch-files.iso ./arch
        ```

    2. If you are booting from a live usb, copy the files in ./arch to the usb drive

4. Disable secureboot (reenable later)

### Installation

You'll want two usb drives while following this guide. One will be the Arch boot drive. The
other will be a support drive with critical files and passwords which we will need to access
after we finish the install.

1. Boot into the live image
2. Check for network connectivity

    ```bash
    # Check for internet
    ip a
    ping archlinux.org
    ```

3. `timedatectl` to update system clock
4. Install pwgen for password generation `pacman -S pwgen`
5. If using a VM, mount the iso with arch conf files

    ```bash
    mount --mkdir /dev/sr1 /media
    ```

6. If using a physical computer, mount your support drive

    ```bash
    mount --mkdir /dev/sdb1 /media
    ```

7. Create disk partitions. Use gdisk or beware "bootctl install is not on a gpt partition table"

    ```bash
    fdisk -l
    gdisk /dev/vda
    ```

    - +1G for /boot
    - t EFI SYSTEM for /boot
    - remaining for /

8. `mkfs.fat -F 32 /dev/vda1` (/mnt/boot partition)
9.  This next step involves generating a secure, random password. Make sure to
   save this somewhere. I recommend having an encrypted partition on your
   installation drive to which you can write a few bytes of text.

    `echo -n $(pwgen 8 5) | sed 's/ /-/g' > /media/root-key.txt`

10. `cryptsetup luksFormat /dev/vda2  --key-file /path/to/root-key.txt`
11. `cryptsetup luksOpen /dev/vda2 root --key-file /path/to/root-key.txt`
12. `mkfs.btrfs /dev/mapper/root` (root partition)
13. At this point you can choose how to subvolume your root partition

    ```bash
    mount --mkdir -o subvolid=5 /btr_pool
    btrfs sub create root /btr_pool
    btrfs sub create home /btr_pool
    ```

14. Mount the root partition with `mount -o subvol=root /dev/mapper/root /mnt`
15. Mount the home partition with `mount -o subvol=home /dev/mapper/root /mnt/home`
16. Mount the boot partition with `mount --mkdir /dev/vda1 /mnt/boot`
17. `pacstrap -K /mnt base linux linux-firmware`

    This command might show an error. This is ok, we'll fix it later.

20. `genfstab -U /mnt >> /mnt/etc/fstab`
21. If on VM: Mount the conf files with `mount --mkdir /dev/sr1 /mnt/media`
18. If on a physical computer: mount the support parition with `mount --mkdir /dev/sdb1 /mnt/media`
22. `arch-chroot /mnt`
23. `ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime`
24. `hwclock --systohc`
25. `echo 'en_US.UTF-8 UTF-8' > /etc/locale.gen`
26. `echo 'KEYMAP=us' > /etc/vconsole.conf`
27. `echo 'hostname' > /etc/hostname`
28. `pacman -S sudo vim dhclient dhcpcd bash-completion btrfs-progs plymouth`

    - dhclient/dhcpcd provides dhcp for network
    - bash-completion provides tab complete
    - btrfs-progs provides fsck for btrfs
    - plymouth gives a nice bootloader screen

29. Edit /etc/mkinitcpio.conf and uncomment the line for systemd-boot with an encrypted drive.
30. `mkinitcpio -P`
31. Install systemd-boot

    <https://wiki.archlinux.org/title/systemd-boot>

    ```bash
    bootctl install
    ```

    If this raises an error like "efi partition not found" you probably forgot to format
    /mnt/boot as an EFI partition. Edit this by reformatting it with gdisk (ef00 is the hex code).

32. edit your loader.conf with some defaults

    /boot/loader/loader.conf

    ```conf
    default  arch.conf
    timeout  4
    console-mode max
    editor   no
    ```

33. Create a loader (/usr/share/systemd/bootctl/arch.conf for example)

    /boot/loader/entries/arch.conf

    ```conf
    title   Arch Linux
    linux   /vmlinuz-linux
    initrd  /initramfs-linux.img
    options ... rd.luks.name=d9828faa-2b8c-4184-9e74-9054ae328c6d=root root=/dev/mapper/root rootflags=subvol=root ...
    ```

    You can get the UUID of the disk into arch.conf with some grepping. Use vim to cut
    the excess and copy it into the correct location.

    ```bash
    blkid | grep /dev/vda2 >> /boot/loader/entries/arch.conf
    ```

34. `useradd ducoterra`
35. `passwd ducoterra`
36. `groupadd sudo`
37. Edit /etc/sudoers and uncomment the section allowing sudo and wheel group privilege
38. `usermod -aG sudo ducoterra`
39. `usermod -aG wheel ducoterra`
40. `mkdir /home/ducoterra`
41. `chown ducoterra:ducoterra /home/ducoterra`
42. `locale-gen`
43. `systemctl enable dhcpcd`
44. If on VM install guest drivers: `pacman -S qemu-guest-agent spice-vdagent`
45. If you need ssh: `pacman -S openssh; systemctl enable sshd`
46. Add a pacman hook for systemd-boot updates

    /etc/pacman.d/hooks/95-systemd-boot.hook

    ```conf
    [Trigger]
    Type = Package
    Operation = Upgrade
    Target = systemd

    [Action]
    Description = Gracefully upgrading systemd-boot...
    When = PostTransaction
    Exec = /usr/bin/systemctl restart systemd-boot-update.service
    ```

47. Install gnome: `pacman -S gdm gnome`

    - choose pipewire-jack
    - choose wireplumber
    - choose noto-fonts-emoji

48. `systemctl enable gdm`
49. Install NetworkManager `pacman -S networkmanager`
50. `systemctl enable NetworkManager`
51. Install gnome nice-to-haves `pacman -S gnome-tweaks dconf-editor seahorse`
52. Install tpm2-tss for tpm2 disk decryption `pacman -S tpm2-tss`
53. Setup tpm2 disk decryption

    ```bash
    systemd-cryptenroll /dev/vda2 --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs="" --unlock-key-file=/media/root-key.txt
    ```
54. `exit`
55. `reboot`


### Gnome Keyring

Don't set a password for single-user systems. We're using full-disk encryption.
This will let you login with just a fingerprint.

### Base Tools

```bash
# gvfs and gvfs-dnssd are for webdav support
pacman -S rsync which git iperf3 pwgen dosfstools exfatprogs gvfs gvfs-dnssd wget man-db
```

### ZSH

```bash
pacman -S zsh grml-zsh-config zsh-syntax-highlighting zsh-autosuggestions pkgfile
chsh -s $(which zsh)

cat <<EOF > ~/.zshrc
# Basic settings
autoload bashcompinit && bashcompinit
autoload -U compinit; compinit
zstyle ':completion:*' menu select

# Prompt settings
autoload -Uz promptinit
promptinit
PROMPT_EOL_MARK=

# Syntax Highlighting
source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh

# Command Not Found Autocomplete
source /usr/share/doc/pkgfile/command-not-found.zsh

### Custom Commands and Aliases ###
EOF
```

### Prompt Themes

See: <https://wiki.archlinux.org/title/Zsh#Prompt_themes>

Use `prompt -l` to list prompts

Use `prompt -p` to see previews

In your `.zshrc` set the following:

```bash
autoload -Uz promptinit
promptinit
prompt grml
```

### AUR

The AUR lets you install community-created and maintained packages. Here are the basics:

```bash
pacman -S --needed git base-devel
mkdir ~/AUR

# When you find a project, the basic installation looks like this:
git clone <git repo from aur>
cd <folder name>
makepkg -si
```

### Security

<https://wiki.archlinux.org/title/security>

Every machine, regardless of use-case, should perform some basic hardening. You don't
need to follow every instruction in the above wiki, but you should at least
enable secure boot, tpm2 disk decryption, firewall, apparmor, clamav, btrfs snapshots,
and btrfs backups.

Security Philosophy

1. Secure Boot

    Protection from pre-boot malware that might hijack your EFI binary.

    <https://www.rodsbooks.com/efi-bootloaders/secureboot.html>

2. TPM2 Decryption

    Since we have secure boot enabled we can safely auto-decrypt our hard drive with a
    tpm2 device. This is purely a convenience.

3. Firewall

    This should be self-explanatory, but I'll explain anyway. Don't allow any arbitrary
    network traffic into your device. Block those ports. Only open what you need. Firewalls
    drastically reduce the risk of remote exploits by stopping them before they can even
    establish a connection. Firewalls can also be used to limit an attacker's ability
    to even discover you on a network with icmp blocking.

4. ClamAV

    Much like Windows has Windows Defender, Linux has ClamAV. Running an antivirus scanner
    certainly isn't the end-all-be-all of security, and it definitely isn't good enough
    on its own to keep your system safe, but in combination with apparmor and a firewall
    you can identify and quarantine malware before it has a chance to compromise your system. That
    being said, finding *any* malware on a system is reason enough to nuke it from orbit and restore from a
    known good backup.

5. BTRFS Snapshots

    This is not a backup, this is a snapshot. It serves an equally important function, however,
    in that it protects you from accidental deletion and corruption. Let's imagine you perform
    an update, reboot, and your computer crashes mid-startup. You could easily restore root
    from a btrfs snapshot on your system and go on with your day like nothing happened.

6. BTRFS Backups

    This is a backup. Unlike snapshots, which live on the same drive your system exists
    on, backups are physically separate copies of your computer stored (hopefully) in a
    physically separate location. In the event your computer is lost or stolen these
    backups give you a way to perfectly restore your system to its former glory.

#### Secure Boot

1. Put your machine in setup mode

    On framework this is done in the UEFI setup page for Security, sub-page
    Secure Boot, choose “Erase all Secure Boot Settings.”

    On my Gigabyte motherboard this is done in the BIOS under security. Set secure boot
    to custom.

2. `pacman -S efitools sbctl`
3. `cd /btr_pools/root/support/`
4. `for var in PK KEK db dbx ; do efi-readvar -v $var -o old_${var}.esl ; done`
5. `sbctl create-keys`
6. `sbctl enroll-keys -m`
7. `sbctl status`
8. `sbctl verify`
9. `sbctl sign -s /boot/vmlinuz-linux`
10. `sbctl sign -s /boot/EFI/BOOT/BOOTX64.EFI`
11. `sbctl sign -s /boot/EFI/systemd/systemd-bootx64.efi`
12. `sbctl verify`
13. `reboot`
14. Enable secure boot
15. `sbctl status` to check secure boot
16. `bootctl` to check boot loader status

There is a pacman hook which will automatically sign new binaries on update.

#### TPM2 LUKS Decryption with Secure Boot

You can optionally allow tpm2 decryption only while secure boot is active.

Using `--tpm2-pcrs=7` enforces secure boot and will require password if secure boot is disabled.

1. `pacman -S tpm2-tss`
2. `systemd-cryptenroll /dev/vda2 --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs=7 --unlock-key-file=/btr_pools/root/support/root-key.txt`

##### Re-enroll

```bash
systemd-cryptenroll /dev/nvme0n1p2 --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs=7 --unlock-key-file=/btr_pools/root/support/root-key.txt
systemd-cryptenroll /dev/nvme0n1p3 --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs=7 --unlock-key-file=/btr_pools/root/support/root-key.txt
```

#### FIDO2 LUKS Decryption

1. `pacman -S libfido2`

#### Firewall

```bash
pacman -S ufw
systemctl enable --now ufw
```

#### ClamAV

1. `pacman -S clamav`
2. `clamscan --recursive --infected /path/to/dir`

- OR -

1. `touch /var/log/clamav/freshclam.log`
2. `systemctl enable --now clamav-freshclam.service`
3. `systemctl enable --now clamav-daemon.service`
4. `clamdscan --multiscan --fdpass /home/ducoterra`

#### btrbk

```bash
cd Downloads
wget https://raw.githubusercontent.com/digint/btrbk/master/btrbk
clamdscan .
chmod +x btrbk
sudo mv btrbk /usr/bin/
```

##### fstab

You'll need to mount your btrfs volumes in a location which exposes their subvolumes.

```bash
mkdir -p /btr_pools/root
```

/etc/fstab

```conf
# btr_pools
UUID=84153269-f194-43f7-a4fe-e72aaffdb97a       /btr_pools/root               btrfs           rw,relatime,ssd,space_cache=v2,subvolid=5  0 0
```

```bash
systemctl daemon-reload
mount -a
btrfs sub create /btr_pools/root/.snapshots
```

##### Snapshots

`mkdir /etc/btrbk`

Create a snapshot config

/etc/btrbk/snapshots.conf

```conf
snapshot_preserve_min   24h
snapshot_preserve       24h

# root
volume /btr_pools/root
    subvolume           root
    snapshot_dir        .snapshots

# home
volume /btr_pools/root
    subvolume           home
    snapshot_dir        .snapshots
```

Then create a snapshot service

/etc/systemd/system/btrbk_snapshots.service

```conf
[Unit]
Description=Runs btrbk with config file at /etc/btrbk/snapshots.conf

[Service]
ExecStart=/usr/bin/btrbk -c /etc/btrbk/snapshots.conf -v run
```

Then create a timer for the service

/etc/systemd/system/btrbk_snapshots.timer

```conf
[Unit]
Description=Run snapshots every hour

[Timer]
OnCalendar=hourly

AccuracySec=10min
Persistent=true
Unit=btrbk_snapshots.service

[Install]
WantedBy=timers.target
```

Then enable the service

```bash
systemctl enable --now btrbk_snapshots.timer
```

##### Backups

Before you begin, go through the usual process of setting up an encrypted drive. If
you're using Gnome I recommend using the GUI since it handles encrypted USB drives
really nicely.

First, I'd recommend manually creating the mountpoint and setting it as a read-only.
This prevents backups from being written to the root device when the backup
disk isn't mounted.

```bash
btrfs sub create /btr_pools/backup
btrfs property set /btr_pools/backup ro true
```

Second, I'd recommend creating subvolumes within your existing volumes for things you
don't want backed up. These include:

1. /var/lib/libvirt
2. Nextcloud

Third, I'd recommend iterating dot directories you'd need to restore and writing them
down somewhere:

1. .aws
2. .cache
3. .config
4. .gitconfig
5. .icons
6. .kube
7. .local
8. .minecraft
9. .mozilla
10. .ssh
11. .steam
12. .vimrc
13. .wireguard
14. .zshrc

Now set up the backup:

1. Create a backup config

    /etc/btrbk/backups.conf

    ```conf
    snapshot_create         no
    target_preserve_min     no
    target_preserve         24h

    # root
    volume /btr_pools/root
        target /btr_pools/backup
        subvolume           root
        snapshot_dir        .snapshots

    # home
    volume /btr_pools/root
        target /btr_pools/backup
        subvolume           home
        snapshot_dir        .snapshots
    ```

2. Create a backup service

    /etc/systemd/system/btrbk_backups.service

    ```conf
    [Unit]
    Description=Runs btrbk with config file at /etc/btrbk/backups.conf

    [Service]
    ExecStart=/usr/bin/btrbk -c /etc/btrbk/backups.conf -v run
    ```

3. Create a timer to activate the service

    /etc/systemd/system/btrbk_backups.timer

    ```conf
    [Unit]
    Description=Run btrbk backups every hour

    [Timer]
    OnCalendar=hourly
    AccuracySec=10min
    Persistent=true
    Unit=btrbk_backups.service

    [Install]
    WantedBy=timers.target
    ```

4. Enable the timer

    ```bash
    systemctl enable --now btrbk_backup.conf
    ```

##### Backing up a snapshot

```bash
pacman -S pv

btrfs send /mnt/btr_backup/root.20230727T1000 | pv | btrfs receive /mnt/btr_iscsi
```

#### Chroots

You can create chroot environments to run firejails or just use for testing purposes.

1. `cd /btr_pools/root`
2. `btrfs sub create chroots`
3. `mkdir /btr_pools/root/chroots/testing`
4. `pacman -S arch-install-scripts`
5. `pacstrap -K /btr_pools/root/chroots/testing base base-devel`
6. `arch-chroot /btr_pools/root/chroots/testing`

#### Fingerprint Reader Support

##### Setup

1. `pacman -S fprintd`
2. `systemctl enable --now fprintd`
3. `fprintd-enroll ducoterra`
4. Install <https://aur.archlinux.org/pam-fprint-grosshack.git> to use fingerprint with gnome

In order to use fingerprint auth with gnome for privileged system stuff with gdm,
edit `/etc/pam.d/system-auth` and add the following to the top of the file:

```conf
auth        sufficient      pam_fprintd_grosshack.so
auth        sufficient      pam_unix.so try_first_pass nullok
```

##### Turn Off Fingerprint When Laptop Lid Closed

**NOTE: This may break fingerprint unlock. Testing in progress.**

To disable fingerprint authentication when the laptop lid is closed, and
re-enable when it is reopened, we will use acpid to bind to the button/lid.*
event to a custom script that will comment out fprintd auth in /etc/pam.d/sudo.

Usually we'd just `systemctl mask fprintd` but this breaks gdm (as of 08/06/23). See
<https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2267> and
<https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6585>.

1. `pacman -S acpid` and then `systemctl enable --now acpid`
2. Create file /etc/acpi/laptop-lid.sh with the following contents:

    ```bash
    #!/bin/bash

    if grep -Fq closed /proc/acpi/button/lid/LID0/state # &&
        # This is used to detect if a display is connected.
        # For USB C displayport use: 
        # grep -Fxq connected /sys/class/drm/card1-DP-2/status
        # For hdmi use:
        # grep -Fxq connected /sys/class/drm/card0-HDMI-A-1/status
    then
        # comment out fprintd
        sed -i -E 's/^([^#].*pam_fprintd.so)/#\1/g' /etc/pam.d/sudo
    else
        # uncomment fprintd
        sed -i -E 's/#(.*pam_fprintd.so)/\1/g' /etc/pam.d/sudo

    fi
    ```

3. Make the file executable with

    `chmod +x /etc/acpi/laptop-lid.sh`

4. Create file /etc/acpi/events/laptop-lid with the following contents:

    ```bash
    event=button/lid.*
    action=/etc/acpi/laptop-lid.sh
    ```

5. Restart the acpid service with:

    `systemctl restart acpid`

Now the fingerprint will be used only when the lid is open.

In order to ensure the correct state after suspend we need a service file which
runs our script on wake.

1. Create a file named /etc/systemd/system/laptop-lid.service with the following contents:

    ```bash
    [Unit]
    Description=Laptop Lid
    After=suspend.target

    [Service]
    ExecStart=/etc/acpi/laptop-lid.sh

    [Install]
    WantedBy=multi-user.target
    WantedBy=suspend.target
    ```

2. Reload the systemd config files with

    `sudo systemctl daemon-reload`

3. Start and enable the service with

    `sudo systemctl enable --now laptop-lid.service`

Now the status should be correct even after connecting/disconnecting when the computer is off.

## Hardware Management

### Power Profiles

<https://wiki.archlinux.org/title/CPU_frequency_scaling#power-profiles-daemon>

```bash
pacman -S power-profiles-daemon
systemctl enable --now power-profiles-daemon
```

### Color Management

<https://wiki.archlinux.org/title/Framework_Laptop_13#Display>

<https://wiki.archlinux.org/title/ICC_profiles#Wayland>

```bash
cp /home/ducoterra/Downloads/BOE_CQ... /usr/share/color/icc/colord/
colormgr get-profiles
colormgr get-devices
colormgr device-add-profile xrandr-BOE-0x095f-0x00000000 icc-eca2e6d155d550a5e78c97a34ac3fcae
```

### Washed out colors with power-profiles-daemon

<https://wiki.archlinux.org/title/Framework_Laptop_13#(AMD)_Washed-out_colors_when_using_power-profiles-daemon_in_power-saver_or_balanced_mode>

```bash
systemctl edit power-profiles-daemon.service --drop-in=disable_panel_powersavings
```

```conf
[Service]
ExecStart=
ExecStart=/usr/lib/power-profiles-daemon --block-action=amdgpu_panel_power
```

### Hardware Acceleration

(This helps enable hardware encoding/decoding for steam streaming)

Intel

```bash
pacman -S libva-utils intel-media-driver
vainfo
```

AMD

```bash
pacman -S vulkan-radeon libva-utils libva-mesa-driver xf86-video-amdgpu
vainfo
```

### Don't sleep while plugged in

This is needed for the Framework 13 (11th gen) since sleeping while plugged in to a dock
will prevent it from waking up.

```bash
vim /etc/systemd/logind.conf
```

### Bluetooth

1. `pacman -S bluez bluez-utils`
2. `systemctl enable --now bluetooth`

### Audio

Without pipewire-pulse the audio level/device will reset every reboot.

1. `pacman -S pipewire-pulse` (remove conflicting packages)

## Software Stores

### AppImage Support

Also chmod +x before running.

1. `cp ~/Downloads/xxxxxxx.appimage ~/Applications`
2. Find an icon online and save it to ~/.icons
3. Write a .desktop entry at ~/.local/share/applications/

    ```conf
    [Desktop Entry]
    Name=
    Exec=/home/ducoterra/Applications/
    Icon=/home/ducoterra/.icons/
    Type=Application
    ```

4. `desktop-file-validate ~/.local/share/applications/*.desktop`
5. `update-desktop-database`

#### Troubleshooting

fuse may be required to run an appimage.

```bash
sudo pacman -S fuse
```

### Flatpak

```bash
pacman -S flatpak
```

## Apps

### Firefox

You'll want firefox and gnome-browser-connector (for gnome extension management).

```bash
pacman -S firefox gnome-browser-connector
```

Choose noto-fonts

#### Gnome Extensions

1. AlphabeticalAppGrid@stuarthayhurst
2. <Vitals@CoreCoding.com>
3. <dash-to-dock@micxgx.gmail.com>
4. <tactile@lundal.io>

### Avahi (Bonjour)

1. `pacman -S avahi`
2. `vim /etc/nsswitch.conf`

    ```conf
    hosts: mymachines mdns [NOTFOUND=return] resolve [!UNAVAIL=return] files myhostname dns
    ```

3. `vim /etc/mdns.allow`

```conf
.local.
.local
```

### CUPS Printing

Note: you need [avahi](#avahi-bonjour) for auto-discovery.

1. `pacman -S cups cups-pdf system-config-printer gutenprint foomatic-db-gutenprint-ppds`
2. `cups-genppdupdate`
3. `usermod -aG lp ducoterra`
4. `systemctl enable --now cups`
5. In gnome settings: 
   1. Add printer
   2. Enter the IP address
   3. Wait...
   4. Select "JetDirect"
   5. Select Generic
   6. Select IPP Printer
   7. Print