arch-install: Add display manager and zram section

.dotfiles/arch_install.md

@@ -6,9 +6,9 @@ This document describes my ArchLinux installation steps. It skips over the prepa
 - use `NetworkManager` for network configuration
 - use `btrfs` as the main file system
 - use `LUKS` for disk encryption
+- use `greetd` as display manager
 - **try** to only use native wayland with sway as WM
-- no swap partition (i might use zram or a swapfile in the future though)
-- no display manager (for now at least)
+- use zram instead of a swap partition/file
 
 My setup is opinionated and so is this doc.
 
@@ -332,16 +332,10 @@ $ dotfiles config --local status.showUntrackedFiles no
 $ dotfiles checkout
 ```
 
-Install various packages from dotfiles
+Install and update various packages
 
 ```console
-$ sudo pacman -S --needed - < $HOME/.dotfiles/pkglist.txt
-```
-
-Update system just to be sure
-
-```console
-$ sudo pacman -Syu
+$ sudo pacman -Syu --needed - < $HOME/.dotfiles/pkglist.txt
 ```
 
 ### AUR
@@ -349,7 +343,7 @@ $ sudo pacman -Syu
 Install `paru` as AUR helper
 
 ```console
-$ sudo pacman -S --needed base-devel
+$ sudo pacman -Syu --needed base-devel
 $ git clone https://aur.archlinux.org/paru.git
 $ cd paru
 $ makepkg -si
@@ -358,7 +352,7 @@ $ makepkg -si
 Install packages from AUR
 
 ```console
-$ paru -Sa wlogout
+$ paru -Syua --needed - < $HOME/.dotfiles/pkglist-aur.txt
 ```
 
 ### Flatpak
@@ -366,7 +360,7 @@ $ paru -Sa wlogout
 Install flatpak package
 
 ```console
-$ sudo pacman -S flatpak
+$ sudo pacman -Syu flatpak
 ```
 
 Add the flathub repo
@@ -381,12 +375,27 @@ Install `Flatseal` to manage flatpak permissions via GUI
 $ flatpak install flathub com.github.tchx84.Flatseal
 ```
 
+### Setup zram
+
+Install `zram-generator`
+
+```console
+$ sudo pacman -Syu zram-generator
+```
+
+Create zram config file `/etc/systemd/zram-generator.conf`, e.g.:
+
+```ini
+[zram0]
+zram-size = min(ram, 8192)
+```
+
 ### (optional) Configure boot splash screen
 
 Install `plymouth`
 
 ```console
-$ sudo paru -Sa plymouth-git
+$ sudo paru -Syua plymouth-git
 ```
 
 Adapt mkinitcpio hooks. Add `plymouth plymouth-encrypt` **after** `base udev` and remove `encrypt`. Resulting in e.g.
@@ -400,3 +409,81 @@ Set theme for plymouth (this also regenerates the initramfs)
 ```console
 $ sudo plymouth-set-default-theme -R script
 ```
+
+### (optional) Configure display manager
+
+These steps will use `greetd` with the `gtkgreet` greeter and will use `sway` as compositor.
+
+Install `greetd` and `greetd-gtkgreet-git`
+
+```console
+$ sudo paru -Syua greetd greetd-gtkgreet-git
+```
+
+Create greetd config directory
+
+```console
+$ sudo mkdir -p /etc/greetd
+```
+
+Create `/etc/greetd/environments` file with all environments that gtkgreet should be able to start, e.g.:
+
+```
+sway
+bash
+```
+
+Create greetd config file `/etc/greetd/config.toml`, e.g.:
+
+```toml
+[terminal]
+# The VT to run the greeter on. Can be "next", "current" or a number
+# designating the VT.
+vt = 1
+
+# The default session, also known as the greeter.
+[default_session]
+command = "sway --config /etc/greetd/sway-config"
+user = "greeter"
+```
+
+Create  `/etc/greetd/sway-config` which will be used by the sway greeter session, e.g.:
+
+```config
+exec "gtkgreet --layer-shell --style /etc/greetd/gtkgreet-style.css; swaymsg exit"
+
+bindsym Mod4+shift+e exec swaynag \
+-t warning \
+-m 'What do you want to do?' \
+-b 'Poweroff' 'systemctl poweroff' \
+-b 'Reboot' 'systemctl reboot'
+ 
+include /etc/sway/config.d/*
+```
+It is advisable to also set the correct output and input configuration.
+Either write them into the same file or place additional files into `/etc/sway/config.d/`.
+
+Optionally one can style the gtkgreet greeter with `/etc/greetd/gtkgreet-style.css`, e.g.:
+
+```css
+window {
+  background-color: rgba(0, 0, 0, 0);
+  background-size: contain;
+  background-position: center;
+  color: rgba(200, 200, 200, 0.9);      
+}
+
+box#body {
+  background-color: rgba(50, 50, 50, 0.8);
+  border-radius: 10px;
+  color: rgba(250, 250, 250, 0.9);      
+  padding: 50px;
+}
+```
+
+Enable and start `greetd.service`
+
+```console
+$ sudo systemctl enable --now greetd.service
+```
+

.dotfiles/pkglist-aur.txt

@@ -1,18 +1,14 @@
 aurutils
 brave-bin
 discord_arch_electron
-gamehub
 greetd
 greetd-gtkgreet-git
-greetd-wlgreet
 gvisor-tap-vsock
 jd-tool-bin
 looking-glass
-paru
 plymouth-git
 python-pyclip
 soundux
-teamspeak
 tessen
 vendor-reset-dkms-git
 waydroid