added various screen sharing apps/software

wiki/linux/gnirehtet.md

@@ -0,0 +1,31 @@
+# Gnirehtet
+
+[Gnirehtet](https://github.com/Genymobile/gnirehtet) provides a reverse tethering setup for
+[Android](/wiki/android.md) [smartphones](/wiki/smart_device.md#smartphones-and-tablet-computers).
+
+## Setup
+
+Many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package Gnirehtet in the `gnirehtet` package.
+
+## Usage
+
+This section addresses the usage of Gnirehtet.
+
+## Usage
+
+The following command can be used to setup the reverse tethering and also run it.
+For it to work the mobile device has to enable `USB Tethering` so the corresponding app can be
+automatically installed (which is internally done using `adb`).
+
+```sh 
+gnirehtet run
+```
+
+Alternatively and only after being set up correctly the reverse tethering can be started and
+stopped with the corresponding two commands that follow.
+
+```sh 
+gnirehtet start
+gnirehtet stop
+```

wiki/linux/wayland.md

@@ -2,3 +2,16 @@
 
 [Wayland](https://wayland.freedesktop.org/) is a replacement for the
 [X11 window system](/wiki/linux/x_window_system.md).
+
+## Usage
+
+This section addresses the usage of Wayland.
+
+### Display wlroots Screens
+
+To list all the attached screens and displays the following command can be used.
+For this to work the compositor needs to use wlroots.
+
+```sh
+wlr-randr
+```

wiki/linux/wayvnc.md

@@ -0,0 +1,27 @@
+# wayvnc
+
+[wayvnc](https://github.com/any1/wayvnc) is a VNC server for [Linux](/wiki/linux.md) systems using
+[Waylands](/wiki/linux/wayland.md) compositors using wlroots.
+To use wayvnc the system with the server has to be on the same network as the client.
+This is also explained in the [screen sharing entry](/wiki/screen-sharing.md).
+
+## Setup
+
+Many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package wayvnc in the `wayvnc` package.
+
+## Usage
+
+This section addresses the usage of wayvnc.
+
+### Starting and Running 
+
+The following command can be used to start the server.
+`<ip>` describes the IPs the server can be reached by (for example `0.0.0.0`) and `<screen>` is a
+placeholder for the screen that will be shared (for example `HDMI-A-1`).
+The name of the screen can be retrieved by using
+[wlroots](/wiki/linux/wayland.md#display-wlroots-screens).
+
+```sh
+wayvnc <ip> --output=<screen> --render-cursor
+```