diff --git a/bumblebee_status/modules/contrib/amixer.py b/bumblebee_status/modules/contrib/amixer.py
index 4ab30f9..b0fda92 100644
--- a/bumblebee_status/modules/contrib/amixer.py
+++ b/bumblebee_status/modules/contrib/amixer.py
@@ -1,5 +1,8 @@
 """get volume level or control it
 
+Requires the following executable:
+    * amixer
+
 Parameters:
     * amixer.device: Device to use (default is Master,0)
     * amixer.percent_change: How much to change volume by when scrolling on the module (default is 4%)
diff --git a/bumblebee_status/modules/contrib/bluetooth.py b/bumblebee_status/modules/contrib/bluetooth.py
index 64fcc0b..b565494 100644
--- a/bumblebee_status/modules/contrib/bluetooth.py
+++ b/bumblebee_status/modules/contrib/bluetooth.py
@@ -1,4 +1,4 @@
-"""Displays bluetooth status (Bluez). Left mouse click launches manager app,
+"""Displays bluetooth status (Bluez). Left mouse click launches manager app `blueman-manager`,
 right click toggles bluetooth. Needs dbus-send to toggle bluetooth state.
 
 Parameters:
diff --git a/bumblebee_status/modules/contrib/bluetooth2.py b/bumblebee_status/modules/contrib/bluetooth2.py
index 2bcdc32..b8fac09 100644
--- a/bumblebee_status/modules/contrib/bluetooth2.py
+++ b/bumblebee_status/modules/contrib/bluetooth2.py
@@ -1,4 +1,4 @@
-"""Displays bluetooth status. Left mouse click launches manager app,
+"""Displays bluetooth status. Left mouse click launches manager app `blueman-manager`,
 right click toggles bluetooth. Needs dbus-send to toggle bluetooth state and
 python-dbus to count the number of connections
 
diff --git a/bumblebee_status/modules/contrib/brightness.py b/bumblebee_status/modules/contrib/brightness.py
index 28b94a8..dc1691a 100644
--- a/bumblebee_status/modules/contrib/brightness.py
+++ b/bumblebee_status/modules/contrib/brightness.py
@@ -2,6 +2,11 @@
 
 """Displays the brightness of a display
 
+The following executables can be used if `use_acpi` is not enabled:
+    * brightnessctl
+    * light
+    * xbacklight
+
 Parameters:
     * brightness.step: The amount of increase/decrease on scroll in % (defaults to 2)
     * brightness.device_path: The device path (defaults to /sys/class/backlight/intel_backlight), can contain wildcards (in this case, the first matching path will be used); This is only used when brightness.use_acpi is set to true
diff --git a/bumblebee_status/modules/contrib/datetimetz.py b/bumblebee_status/modules/contrib/datetimetz.py
index e4baa4c..df4507f 100644
--- a/bumblebee_status/modules/contrib/datetimetz.py
+++ b/bumblebee_status/modules/contrib/datetimetz.py
@@ -2,6 +2,10 @@
 
 """Displays the current date and time with timezone options.
 
+Requires the following python packages:
+    * tzlocal
+    * pytz
+
 Parameters:
     * datetimetz.format   : strftime()-compatible formatting string
     * datetimetz.timezone : IANA timezone name
diff --git a/bumblebee_status/modules/contrib/github.py b/bumblebee_status/modules/contrib/github.py
index fc16df0..abcdfa5 100644
--- a/bumblebee_status/modules/contrib/github.py
+++ b/bumblebee_status/modules/contrib/github.py
@@ -5,6 +5,8 @@ Displays the unread GitHub notifications count for a GitHub user using the follo
 
     * https://developer.github.com/v3/activity/notifications/#notification-reasons
 
+Uses `xdg-open` or `x-www-browser` to open web-pages.
+
 Requires the following library:
     * requests
 
diff --git a/bumblebee_status/modules/contrib/indicator.py b/bumblebee_status/modules/contrib/indicator.py
index 6b01c41..63445f2 100644
--- a/bumblebee_status/modules/contrib/indicator.py
+++ b/bumblebee_status/modules/contrib/indicator.py
@@ -2,6 +2,9 @@
 
 """Displays the indicator status, for numlock, scrolllock and capslock 
 
+Requires the following executable:
+    * xset
+
 Parameters:
     * indicator.include: Comma-separated list of interface prefixes to include (defaults to 'numlock,capslock')
     * indicator.signalstype: If you want the signali type color to be 'critical' or 'warning' (defaults to 'warning')
diff --git a/bumblebee_status/modules/contrib/octoprint.py b/bumblebee_status/modules/contrib/octoprint.py
index ce1aa89..a324af2 100644
--- a/bumblebee_status/modules/contrib/octoprint.py
+++ b/bumblebee_status/modules/contrib/octoprint.py
@@ -1,9 +1,12 @@
 # pylint: disable=C0111,R0903
 
-"""Displays the Octorpint status and the printer's bed/tools temperature in the status bar.
+"""Displays the Octorrint status and the printer's bed/tools temperature in the status bar.
 
    Left click opens a popup which shows the bed & tools temperatures and additionally a livestream of the webcam (if enabled).
 
+Prerequisites:
+    * tk python library (usually python-tk or python3-tk, depending on your distribution)
+
 Parameters:
     * octoprint.address     : Octoprint address (e.q: http://192.168.1.3)
     * octoprint.apitoken    : Octorpint API Token (can be obtained from the Octoprint Webinterface)
diff --git a/bumblebee_status/modules/contrib/prime.py b/bumblebee_status/modules/contrib/prime.py
index 8a096cb..3fbd049 100644
--- a/bumblebee_status/modules/contrib/prime.py
+++ b/bumblebee_status/modules/contrib/prime.py
@@ -20,7 +20,8 @@ Parameters:
     * prime.nvidiastring: String to use when nvidia is selected (defaults to 'intel')
     * prime.intelstring: String to use when intel is selected (defaults to 'intel')
 
-Requires the following executable:
+Requires the following executables:
+    * sudo
     * prime-select
 
 contributed by `jeffeb3 <https://github.com/jeffeb3>`_ - many thanks!
diff --git a/bumblebee_status/modules/contrib/smartstatus.py b/bumblebee_status/modules/contrib/smartstatus.py
index 2b886e3..b5f3037 100644
--- a/bumblebee_status/modules/contrib/smartstatus.py
+++ b/bumblebee_status/modules/contrib/smartstatus.py
@@ -5,6 +5,10 @@
 
 """Displays HDD smart status of different drives or all drives
 
+Requires the following executables:
+    * sudo
+    * smartctl
+
 Parameters:
     * smartstatus.display: how to display (defaults to 'combined', other choices: 'seperate' or 'singles')
     * smartstatus.drives: in the case of singles which drives to display, separated comma list value, multiple accepted (defaults to 'sda', example:'sda,sdc')
diff --git a/bumblebee_status/modules/contrib/sun.py b/bumblebee_status/modules/contrib/sun.py
index dddc10d..6b0734d 100644
--- a/bumblebee_status/modules/contrib/sun.py
+++ b/bumblebee_status/modules/contrib/sun.py
@@ -5,6 +5,7 @@
 Requires the following python packages:
     * requests
     * suntime
+    * python-dateutil
 
 Parameters:
     * cpu.lat : Latitude of your location
diff --git a/bumblebee_status/modules/contrib/twmn.py b/bumblebee_status/modules/contrib/twmn.py
index 58b2ba1..0fc46b3 100644
--- a/bumblebee_status/modules/contrib/twmn.py
+++ b/bumblebee_status/modules/contrib/twmn.py
@@ -2,6 +2,9 @@
 
 """Toggle twmn notifications.
 
+Requires the following executable:
+    * systemctl
+
 contributed by `Pseudonick47 <https://github.com/Pseudonick47>`_ - many thanks!
 """
 
diff --git a/bumblebee_status/modules/contrib/zpool.py b/bumblebee_status/modules/contrib/zpool.py
index 78cc26a..9863793 100644
--- a/bumblebee_status/modules/contrib/zpool.py
+++ b/bumblebee_status/modules/contrib/zpool.py
@@ -1,5 +1,8 @@
 """Displays info about zpools present on the system
 
+Requires the following executable:
+    * sudo (if `zpool.sudo` is explicitly set to `true`)
+
 Parameters:
    * zpool.list: Comma-separated list of zpools to display info for. If empty, info for all zpools
      is displayed. (Default: '')
diff --git a/bumblebee_status/modules/core/nic.py b/bumblebee_status/modules/core/nic.py
index 75bcd77..d64a14f 100644
--- a/bumblebee_status/modules/core/nic.py
+++ b/bumblebee_status/modules/core/nic.py
@@ -5,6 +5,9 @@
 Requires the following python module:
     * netifaces
 
+Requires the following executable:
+    * iw
+
 Parameters:
     * nic.exclude: Comma-separated list of interface prefixes to exclude (defaults to 'lo,virbr,docker,vboxnet,veth,br')
     * nic.include: Comma-separated list of interfaces to include
diff --git a/bumblebee_status/modules/core/vault.py b/bumblebee_status/modules/core/vault.py
index 0ec4257..28f37f4 100644
--- a/bumblebee_status/modules/core/vault.py
+++ b/bumblebee_status/modules/core/vault.py
@@ -4,6 +4,9 @@
 
 Many thanks to [@bbernhard](https://github.com/bbernhard) for the idea!
 
+Requires the following executable:
+    * pass (aka password-store)
+
 Parameters:
     * vault.duration: Duration until password is cleared from clipboard (defaults to 30)
     * vault.location: Location of the password store (defaults to ~/.password-store)