# Debian Setup

Here's my personal Debian 12 Bookworm setup.

- Set font size in Terminal to 15 and initial column count to 85
- Must haves:
	- `sudo apt install bash-completion curl ddcutil deja-dup earlyoom ffmpeg flatpak git gnome-boxes gnome-clocks \
	  gnome-software-plugin-flatpak gnome-sound-recorder gnome-todo gnome-weather goldendict gparted \
	  keepassxc mosh mpv needrestart obs-studio shadowsocks-libev sshfs synaptic tmux trash-cli ufw \
	  vim-gtk3 vlc wl-clipboard`
- Optional:
	- `sudo apt install gnome-firmware gnome-games gnome-nettool gnome-packagekit gnome-passwordsafe \
	  gnome-shell-pomodoro gnome-usage gthumb mkvtoolnix-gui openjdk-17-jdk pulseeffectsqpdf ranger \
	  syncplay virtualbox-qt podman`
- FlatHub:
	- `flatpak remote-add --if-not-exists flathub
	  https://flathub.org/repo/flathub.flatpakrepo`
- Allocate 8GiB for swap
  ```
  sudo swapoff /swapfile
  sudo fallocate -l 8GiB /swapfile
  sudo chmod 0600 /swapfile
  sudo mkswap /swapfile
  sudo swapon /swapfile
  echo '/swapfile none swap defaults 0 0' | sudo tee -a /etc/fstab > /dev/null
  ```
- Early OOM config: edit `/etc/default/earlyoom` and add:
	- `--avoid
	  '(^|/)(systemd|sshd|mosh-server|ssh|vim|sudo|sudoedit|gnome-shell|gnome-terminal-)$'
	  --prefer '(^|/)(Web Content|Isolated Web Co)$'`
- ddcutil:
	- `sudo usermod -aG i2c $(whoami)`
	- External Monitor Brightness Up: `ddcutil setvcp 10 + 10`
	- External Monitor Brightness Down: `ddcutil setvcp 10 - 10`

## Optional packages

- `clangd` for VSCodium C language server with
  `llvm-vs-code-extensions.vscode-clangd` (?)
- `imagemagick` for `convert`, comment out with `<!-- -->` PDF policy in
  `/etc/ImageMagick-6/policy.xml` (?)
- Cross compiling (?)
	- `gcc-aarch64-linux-gnu`
	- `gcc-arm-linux-gnueabihf`

## UFW

`$ sudo ufw enable`

## Wayland, if it doesn't show up

- `sudoedit /usr/lib/udev/rules.d/61-gdm.rules` and comment the two uncommented
  lines
- Reboot or restart gdm3 (didn't try)

## Apps

- gnome-tweaks
	- `sudo apt install gnome-tweaks`
	- Swap capslock and ESC in `Keyboard & Mouse` -> `Additional Layout Options`
	  -> `Caps Lock behavior`
	- Change `Mouse Click Emulation` to `Area`
	- Turn on weekdays and battery percentage in `Top Bar`
	- Flat mouse acceleration profile
	- Turn off suspend when closing lid
- Extensions
	- `sudo apt install gnome-shell-extensions`
	- Turn on:
		- `Applications menu`
		- `Places status indicator`
		- `Windownavigator`
		- `Workspace Indicator`
	- Note: to manually install Gnome extensions, unzip it and copy the `uuid`
	  field in `metadata.json` and rename the directory to this name, then move
	  to `~/.local/share/gnome-shell/extensions` and logout and login.
- GSConnect
	- `sudo apt install gnome-shell-extension-gsconnect`
	- Uncheck SFTP auto mount
	- Add commands:
		- `Lock`: `loginctl lock-session`
		- `Quack`: `ffplay -v quiet -nodisp -autoexit ~/Music/'.Not
		  Music'/Ringtones/Quack.mp3`
	- UFW:
		- `sudo ufw allow 1716:1764/tcp`
		- `sudo ufw allow 1716:1764/udp`
- Flatseal
	- `flatpak install flathub com.github.tchx84.Flatseal`
- Firefox
	- `flatpak install flathub org.mozilla.firefox`
	- Change default zoom to 110%
	- Enable HTTPS only
	- Proxy DNS when using SOCKS v5
	- Enable DNS over HTTPS
	- In `about:config` set `browser.sessionstore.max_windows_undo` to 10.
	- Use Wayland for correct fractional scaling:
	  `sudo flatpak override --socket=wayland --env=MOZ_ENABLE_WAYLAND=1
	  org.mozilla.firefox`
- Go to settings -> `Region & Language` and install `Chinese (simplified)`.
- VSCodium
	- `flatpak install flathub com.vscodium.codium`
- OBS Studio
	- `$ sudo apt install qtwayland5`
	- In `/usr/share/applications/com.obsproject.Studio.desktop`, replace
	  `Exec=obs` with `Exec=sh -c '[ "$XDG_SESSION_TYPE" = "wayland" ] && obs
	  -platform wayland || obs'`
- Gnome Calendar
	- Add Google accounts in online accounts
	- On older versions of Ubuntu < 22.04, not tested for 22.04:
	- Wait for a bit, it's kinda buggy but it will work at the end (wait for ~2
	  days)
- Golden Dict
	- Import dictionaries in `~/.software/goldendict/stardict-cc-cedict`
	- Don't search in dictionaries contains more then 10000 articles
	- <https://einverne.github.io/post/2018/08/goldendict.html>
- Xournal++
	- `sudo apt install xournalpp texlive-latex-extra`
- cameractrls
	- `flatpak install hu.irl.cameractrls`
- Minecraft
	- TODO: PolyMC just had some problems
	- To host servers: `sudo ufw allow 25565/tcp`
- Bottles
	- `flatpak install flathub com.usebottles.bottles`
	- Check file system permission with Flatseal
- Discord
	- `flatpak install flathub com.discordapp.Discord`
	- Check file system permission with Flatseal
- Slack
	- `flatpak install flathub com.slack.Slack`
	- Check file system permission with Flatseal
- Zoom
	- `flatpak install flathub us.zoom.Zoom`
	- Check file system permission with Flatseal

## Optional Apps

- Impatience (adjust Gnome animation speed)
	- `sudo apt install gnome-shell-extension-impatience`
	- Enable in extensions and set speed to 0.7
- Wobbly Windows (?)
	- From
	  <https://extensions.gnome.org/extension/2950/compiz-alike-windows-effect/>
	- Turn off maximize effect
	- Increase restore factor to 5
- System monitor
	- `$ sudo apt install gnome-shell-extension-system-monitor`
	- Show only CPU (digit and graph) and memory (digit).
- OpenWeatherMap
	- `$ sudo apt install gnome-shell-extension-weather`
	- On older systems (< 21.04), download and install from
	  `https://extensions.gnome.org/extension/750/openweather/`
	- Set location to La Jolla
	- Switch to metric units
- VSCodium
	- `flatpak install flathub com.vscodium.codium`
- Birdtray
	- `$ sudo apt install birdtray`
	- Configure it by running `birdtray` and clicking on the tray icon
	- In Startup Applications Preference:
		- Name: `Birdtray`
		- Command: `sh -c "sleep 20 && /usr/bin/birdtray"`
		- Comment: `Minimize to tray for Thunderbird`
		- Wait for bugs to be fixed before removing sleep:
			- <https://github.com/gyunaev/birdtray/issues/362>
			- <https://github.com/gyunaev/birdtray/issues/430>
	- Hiding: check all except hide/show by clicking icon
	- Broken on Wayland
- Android Studio
	- Move `Ctrl+S` from IdeaVim to IDE
	- Enabled `Mark modified (*)`
	- Disable both `Save files on frame deactivation` and `Save files
	  automatically if application is idle`

## Grub background

### Tool

- `$ sudo apt install grub-customizer`
- Put in background manually

### Manual Script

```
sudo mkdir /opt/grub
sudo cp -r background/ /boot/grub/
sudo chown -R root:root /opt/grub
sudo chmod -R 700 /opt/grub
```

- Add the following lines to `/opt/grub/cycle-backgrounds.sh`:
  ```
  #!/bin/sh
  cd /boot/grub/background
  mv background.png tmp.png
  mv background-1.png background.png
  mv tmp.png background-1.png
  ```
- `$ sudo chown root:root /opt/grub/cycle-backgrounds.sh`
- `$ sudo chmod 700 /opt/grub/cycle-backgrounds.sh`
- Add `@reboot /opt/grub/cycle-backgrounds.sh` to root crontab.
- In `/etc/default/grub`:
	- Add `GRUB_BACKGROUND=/boot/grub/background/background.png`
	- Change `GRUB_TIMEOUT=10` to `GRUB_TIMEOUT=3`
- `$ sudo update-grub`

## OpenSSH Server & Mosh

```
sudo apt install -y openssh-server mosh
sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
sudo cp ../system/sshd/sshd_config /etc/ssh/sshd_config
sudo groupadd --system ssh-users
sudo usermod -aG ssh-users $(whoami)
mkdir -p ~/.ssh
chmod 700 ~/.ssh
touch ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
# insert your SSH public keys into the file
sudo ufw limit 22/tcp
sudo ufw allow 60001:60999/udp
sudo systemctl restart ssh
```

## See logs as admin

`sudo usermod -aG adm $(whoami)`

## Proton black screen fix (?)

Source:
<https://github.com/ValveSoftware/steam-runtime/issues/312#issuecomment-739441559>

```
sudo mv /usr/share/vulkan/icd.d/intel_icd.x86_64.json \
	/usr/share/vulkan/icd.d/intel_icd.x86_64.json.disabled
```

## Proprietary encodings (?)

- `$ sudo apt install ubuntu-restricted-extras`

## Dual boot

### Dislocker

```
$ sudo apt install dislocker
$ sudo mkdir /media/"$(whoami)" /mnt/dislocker /opt/dislocker
$ sudo chmod 700 /media/"$(whoami)" /mnt/dislocker /opt/dislocker
$ sudo chown $user:$user /media/"$(whoami)"
$ sudo chown root:root /mnt/dislocker /opt/dislocker
```

Copy the `.BEK` file to `/opt/dislocker/"$(whoami)".bek`.

```
$ sudo chown root:root /opt/dislocker/"$(whoami)".bek
$ sudo chmod 700 /opt/dislocker/"$(whoami)".bek
```

Add the following lines to `/etc/fstab` with `<user>` replaced:

```
/dev/nvme0n1p6 /mnt/dislocker fuse.dislocker nofail,nouser,umask=0077,bekfile=/opt/dislocker/<user>.bek 0 0
/mnt/dislocker/dislocker-file /media/<user> auto nofail,umask=0077,gid=<user>,uid=<user> 0 0
```

Mount manually with:
```
$ sudo dislocker /dev/nvmen1p6 -p -- /mnt/dislocker
$ sudo mount -o loop /mnt/dislocker/dislocker-file /media/"$(whoami)"
```

## Hardware specific

### Nvidia proprietary driver screen tearing fix

```
echo 'options nvidia-drm modeset=1' | sudo tee \
	/etc/modprobe.d/nvidia-drm-nomodeset.conf > /dev/null
```

### Digimend for Huion tablet (works with H640p)

- = 20.10 & using wayland: no longer necessary
- = 21.04:
	- `$ sudo apt install digimend-dkms`
	- Reboot.
- < 21.04:
	- Download and install from
	  `https://github.com/DIGImend/digimend-kernel-drivers`.

### Razer mouse

```
sudo add-apt-repository ppa:polychromatic/stable
sudo apt install openrazer-meta polychromatic
```

## Workarounds

- [Blanked screen doesn't wake up after locking \[drmModeAtomicCommit: Argument
  invalide\] \[drmModeAtomicCommit: Invalid
  argument\]](https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1968040)
	- Put `MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0` in `/etc/environment`