Added login-manager and tweaked a few things

docs/alpine-desktop-setup/graphical-session/bluetooth.md

@@ -4,7 +4,7 @@ Although bluetooth is not the most secure wireless protocol it is definitly prac
 
 ```
 # apk add bluez
-# rc-update add bluetooth
+# rc-update add bluetooth default
 ```
 
 After that managing bluetooth connections can be done with `blueman-*` applications which have been installed through `home-manager`.

docs/alpine-desktop-setup/graphical-session/login-manager.md

@@ -0,0 +1,28 @@
+# Login manager
+
+A login manager is necessary for quickly entering a graphical enviroment. `greetd` and `greetd-tuigreet` make for a simple and secure login enviroment. Install them through:
+
+```
+# apk add greetd greetd-tuigreet
+# rc-update add greetd default
+```
+
+`greetd` will not work right away because it doesn't know which "greeter" to launch. Configure it in `/etc/greetd/config.toml`:
+
+```
+[terminal]
+vt = 7
+
+[default_session]
+command = "tuigreet --cmd 'dbus-run-session nixGL wayfire 2>&1 >/dev/null' -t --user-menu --power-shutdown 'doas /sbin/poweroff' --power-reboot 'doas /sbin/reboot'"
+
+user = "greetd"
+```
+
+Now the login manager will automatically start a Wayfire session upon login.
+
+To also enable power management on the login screen add the `greetd` user to the `_power` group:
+
+```
+# addgroup greetd _power
+```

docs/alpine-desktop-setup/post-install/users.md

@@ -14,8 +14,8 @@ Also configure `doas` through `/etc/doas.d/main.conf`:
 
 ```
 permit persist :wheel as root
-permit nopasss :_power cmd poweroff
-permit nopasss :_power cmd reboot
+permit nopasss :_power cmd /sbin/poweroff
+permit nopasss :_power cmd /sbin/reboot
 ```
 
 And create a `_power` group for user's to be able to poweroff the system without root: