diff --git a/roles/matrix-backup-borg/defaults/main.yml b/roles/matrix-backup-borg/defaults/main.yml
index 906522c2..5003c26c 100644
--- a/roles/matrix-backup-borg/defaults/main.yml
+++ b/roles/matrix-backup-borg/defaults/main.yml
@@ -1,4 +1,6 @@
 ---
+# Project source code URL: https://gitlab.com/etke.cc/borgmatic
+
 matrix_backup_borg_enabled: true
 
 matrix_backup_borg_base_path: "{{ matrix_base_data_path }}/backup-borg"
diff --git a/roles/matrix-bot-buscarron/defaults/main.yml b/roles/matrix-bot-buscarron/defaults/main.yml
index 56686f42..aff54ceb 100644
--- a/roles/matrix-bot-buscarron/defaults/main.yml
+++ b/roles/matrix-bot-buscarron/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # buscarron is a helpdesk bot
-# See: https://gitlab.com/etke.cc/buscarron
+# Project source code URL: https://gitlab.com/etke.cc/buscarron
 
 matrix_bot_buscarron_enabled: true
 
diff --git a/roles/matrix-bot-go-neb/defaults/main.yml b/roles/matrix-bot-go-neb/defaults/main.yml
index fa57b109..31cb27d6 100644
--- a/roles/matrix-bot-go-neb/defaults/main.yml
+++ b/roles/matrix-bot-go-neb/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Go-NEB is a Matrix bot written in Go. It is the successor to Matrix-NEB, the original Matrix bot written in Python.
-# See: https://github.com/matrix-org/go-neb
+# Project source code URL: https://github.com/matrix-org/go-neb
 
 matrix_bot_go_neb_enabled: true
 matrix_bot_go_neb_version: latest
diff --git a/roles/matrix-bot-honoroit/defaults/main.yml b/roles/matrix-bot-honoroit/defaults/main.yml
index 292de0bf..665c64e9 100644
--- a/roles/matrix-bot-honoroit/defaults/main.yml
+++ b/roles/matrix-bot-honoroit/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # honoroit is a helpdesk bot
-# See: https://gitlab.com/etke.cc/honoroit
+# Project source code URL: https://gitlab.com/etke.cc/honoroit
 
 matrix_bot_honoroit_enabled: true
 
diff --git a/roles/matrix-bot-matrix-registration-bot/defaults/main.yml b/roles/matrix-bot-matrix-registration-bot/defaults/main.yml
index 40538478..6cd0d15a 100644
--- a/roles/matrix-bot-matrix-registration-bot/defaults/main.yml
+++ b/roles/matrix-bot-matrix-registration-bot/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-registration-bot creates and manages registration tokens for a matrix server
-# See: https://github.com/moan0s/matrix-registration-bot
+# Project source code URL: https://github.com/moan0s/matrix-registration-bot
 
 matrix_bot_matrix_registration_bot_enabled: true
 matrix_bot_matrix_registration_bot_container_image_self_build: false
diff --git a/roles/matrix-bot-matrix-reminder-bot/defaults/main.yml b/roles/matrix-bot-matrix-reminder-bot/defaults/main.yml
index 0fdf8a41..48e6f07b 100644
--- a/roles/matrix-bot-matrix-reminder-bot/defaults/main.yml
+++ b/roles/matrix-bot-matrix-reminder-bot/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-reminder-bot is a bot for one-off and recurring reminders
-# See: https://github.com/anoadragon453/matrix-reminder-bot
+# Project source code URL: https://github.com/anoadragon453/matrix-reminder-bot
 
 matrix_bot_matrix_reminder_bot_enabled: true
 
diff --git a/roles/matrix-bot-mjolnir/defaults/main.yml b/roles/matrix-bot-mjolnir/defaults/main.yml
index 714cd0d3..94d04e78 100644
--- a/roles/matrix-bot-mjolnir/defaults/main.yml
+++ b/roles/matrix-bot-mjolnir/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # A moderation tool for Matrix
-# See: https://github.com/matrix-org/mjolnir
+# Project source code URL: https://github.com/matrix-org/mjolnir
 
 matrix_bot_mjolnir_enabled: true
 
diff --git a/roles/matrix-bridge-appservice-discord/defaults/main.yml b/roles/matrix-bridge-appservice-discord/defaults/main.yml
index b2ef2cdf..f3e39f24 100644
--- a/roles/matrix-bridge-appservice-discord/defaults/main.yml
+++ b/roles/matrix-bridge-appservice-discord/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-appservice-discord is a Matrix <-> Discord bridge
-# See: https://github.com/Half-Shot/matrix-appservice-discord
+# Project source code URL: https://github.com/Half-Shot/matrix-appservice-discord
 
 matrix_appservice_discord_enabled: true
 
diff --git a/roles/matrix-bridge-appservice-irc/defaults/main.yml b/roles/matrix-bridge-appservice-irc/defaults/main.yml
index d0843836..52554f61 100644
--- a/roles/matrix-bridge-appservice-irc/defaults/main.yml
+++ b/roles/matrix-bridge-appservice-irc/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Matrix Appservice IRC is a Matrix <-> IRC bridge
-# See: https://github.com/matrix-org/matrix-appservice-irc
+# Project source code URL: https://github.com/matrix-org/matrix-appservice-irc
 
 matrix_appservice_irc_enabled: true
 
diff --git a/roles/matrix-bridge-appservice-slack/defaults/main.yml b/roles/matrix-bridge-appservice-slack/defaults/main.yml
index ae3f55df..91a00d3d 100644
--- a/roles/matrix-bridge-appservice-slack/defaults/main.yml
+++ b/roles/matrix-bridge-appservice-slack/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-appservice-slack is a Matrix <-> Slack bridge
-# See: https://github.com/matrix-org/matrix-appservice-slack
+# Project source code URL: https://github.com/matrix-org/matrix-appservice-slack
 
 matrix_appservice_slack_enabled: true
 
diff --git a/roles/matrix-bridge-appservice-webhooks/defaults/main.yml b/roles/matrix-bridge-appservice-webhooks/defaults/main.yml
index 223b9c0b..e7ea26ed 100644
--- a/roles/matrix-bridge-appservice-webhooks/defaults/main.yml
+++ b/roles/matrix-bridge-appservice-webhooks/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-appservice-webhooks is a Matrix <-> webhook bridge
-# See: https://github.com/redoonetworks/matrix-appservice-webhooks
+# Project source code URL: https://github.com/redoonetworks/matrix-appservice-webhooks
 
 matrix_appservice_webhooks_enabled: true
 
diff --git a/roles/matrix-bridge-beeper-linkedin/defaults/main.yml b/roles/matrix-bridge-beeper-linkedin/defaults/main.yml
index 514cfb14..498e4894 100644
--- a/roles/matrix-bridge-beeper-linkedin/defaults/main.yml
+++ b/roles/matrix-bridge-beeper-linkedin/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # beeper-linkedin is a Matrix <-> LinkedIn bridge
-# See: https://gitlab.com/beeper/linkedin
+# Project source code URL: https://gitlab.com/beeper/linkedin
 
 matrix_beeper_linkedin_enabled: true
 
diff --git a/roles/matrix-bridge-go-skype-bridge/defaults/main.yml b/roles/matrix-bridge-go-skype-bridge/defaults/main.yml
index b6b4db34..5e31b045 100644
--- a/roles/matrix-bridge-go-skype-bridge/defaults/main.yml
+++ b/roles/matrix-bridge-go-skype-bridge/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Go Skype Bridge is a Matrix <-> Skype bridge
-# See: https://github.com/kelaresg/go-skype-bridge
+# Project source code URL: https://github.com/kelaresg/go-skype-bridge
 
 matrix_go_skype_bridge_enabled: true
 
diff --git a/roles/matrix-bridge-heisenbridge/defaults/main.yml b/roles/matrix-bridge-heisenbridge/defaults/main.yml
index dfbddd42..e8d2c790 100644
--- a/roles/matrix-bridge-heisenbridge/defaults/main.yml
+++ b/roles/matrix-bridge-heisenbridge/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # heisenbridge is a bouncer-style Matrix IRC bridge
-# See: https://github.com/hifi/heisenbridge
+# Project source code URL: https://github.com/hifi/heisenbridge
 
 matrix_heisenbridge_enabled: true
 
diff --git a/roles/matrix-bridge-hookshot/defaults/main.yml b/roles/matrix-bridge-hookshot/defaults/main.yml
index abe26668..74f98bac 100644
--- a/roles/matrix-bridge-hookshot/defaults/main.yml
+++ b/roles/matrix-bridge-hookshot/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 
 # A bridge between Matrix and multiple project management services, such as GitHub, GitLab and JIRA.
-# https://github.com/matrix-org/matrix-hookshot
+# Project source code URL: https://github.com/matrix-org/matrix-hookshot
 
 matrix_hookshot_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-facebook/defaults/main.yml b/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
index 22d7fda6..7993550f 100644
--- a/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-facebook/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-facebook is a Matrix <-> Facebook bridge
-# See: https://github.com/mautrix/facebook
+# Project source code URL: https://github.com/mautrix/facebook
 
 matrix_mautrix_facebook_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-googlechat/defaults/main.yml b/roles/matrix-bridge-mautrix-googlechat/defaults/main.yml
index 2077d210..5b93741a 100644
--- a/roles/matrix-bridge-mautrix-googlechat/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-googlechat/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-googlechat is a Matrix <-> googlechat bridge
-# See: https://github.com/mautrix/googlechat
+# Project source code URL: https://github.com/mautrix/googlechat
 
 matrix_mautrix_googlechat_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml b/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
index 31fec100..061fa56a 100644
--- a/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-hangouts/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-hangouts is a Matrix <-> Hangouts bridge
-# See: https://github.com/mautrix/hangouts
+# Project source code URL: https://github.com/mautrix/hangouts
 
 matrix_mautrix_hangouts_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-instagram/defaults/main.yml b/roles/matrix-bridge-mautrix-instagram/defaults/main.yml
index 79ff1bf0..5c849cfc 100644
--- a/roles/matrix-bridge-mautrix-instagram/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-instagram/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-instagram is a Matrix <-> Instagram bridge
-# See: https://github.com/mautrix/instagram
+# Project source code URL: https://github.com/mautrix/instagram
 
 matrix_mautrix_instagram_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-signal/defaults/main.yml b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
index 6b0f41d7..3ed92dbc 100644
--- a/roles/matrix-bridge-mautrix-signal/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-signal is a Matrix <-> Signal bridge
-# See: https://github.com/mautrix/signal
+# Project source code URL: https://github.com/mautrix/signal
 
 matrix_mautrix_signal_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-telegram/defaults/main.yml b/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
index e3ee2fe9..97ba2bc9 100644
--- a/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-telegram/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-telegram is a Matrix <-> Telegram bridge
-# See: https://github.com/mautrix/telegram
+# Project source code URL: https://github.com/mautrix/telegram
 
 matrix_mautrix_telegram_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-twitter/defaults/main.yml b/roles/matrix-bridge-mautrix-twitter/defaults/main.yml
index 291bd6a5..150b5b4d 100644
--- a/roles/matrix-bridge-mautrix-twitter/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-twitter/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-twitter is a Matrix <-> Twitter bridge
-# See: https://github.com/mautrix/twitter
+# Project source code URL: https://github.com/mautrix/twitter
 
 matrix_mautrix_twitter_enabled: true
 
diff --git a/roles/matrix-bridge-mautrix-whatsapp/defaults/main.yml b/roles/matrix-bridge-mautrix-whatsapp/defaults/main.yml
index 04184abe..e7f02709 100644
--- a/roles/matrix-bridge-mautrix-whatsapp/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-whatsapp/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mautrix-whatsapp is a Matrix <-> Whatsapp bridge
-# See: https://github.com/mautrix/whatsapp
+# Project source code URL: https://github.com/mautrix/whatsapp
 
 matrix_mautrix_whatsapp_enabled: true
 
diff --git a/roles/matrix-bridge-mx-puppet-discord/defaults/main.yml b/roles/matrix-bridge-mx-puppet-discord/defaults/main.yml
index 2a2ecd58..4d297f25 100644
--- a/roles/matrix-bridge-mx-puppet-discord/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-discord/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Mx Puppet Discord is a Matrix <-> Discord bridge
-# See: https://gitlab.com/mx-puppet/discord/mx-puppet-discord
+# Project source code URL: https://gitlab.com/mx-puppet/discord/mx-puppet-discord
 
 matrix_mx_puppet_discord_enabled: true
 
diff --git a/roles/matrix-bridge-mx-puppet-groupme/defaults/main.yml b/roles/matrix-bridge-mx-puppet-groupme/defaults/main.yml
index 0daf6dfc..696380ed 100644
--- a/roles/matrix-bridge-mx-puppet-groupme/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-groupme/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Mx Puppet GroupMe is a Matrix <-> GroupMe bridge
-# See: https://gitlab.com/robintown/mx-puppet-groupme
+# Project source code URL: https://gitlab.com/robintown/mx-puppet-groupme
 
 matrix_mx_puppet_groupme_enabled: true
 
diff --git a/roles/matrix-bridge-mx-puppet-instagram/defaults/main.yml b/roles/matrix-bridge-mx-puppet-instagram/defaults/main.yml
index 3a73e0fe..c7c86e3c 100644
--- a/roles/matrix-bridge-mx-puppet-instagram/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-instagram/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # mx-puppet-instagram bridges instagram DMs
-# See: https://github.com/Sorunome/mx-puppet-instagram
+# Project source code URL: https://github.com/Sorunome/mx-puppet-instagram
 
 matrix_mx_puppet_instagram_enabled: true
 
diff --git a/roles/matrix-bridge-mx-puppet-slack/defaults/main.yml b/roles/matrix-bridge-mx-puppet-slack/defaults/main.yml
index b77614f7..294b18cf 100644
--- a/roles/matrix-bridge-mx-puppet-slack/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-slack/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Mx Puppet Slack is a Matrix <-> Slack bridge
-# See: https://github.com/Sorunome/mx-puppet-slack
+# Project source code URL: https://gitlab.com/mx-puppet/slack/mx-puppet-slack
 
 matrix_mx_puppet_slack_enabled: true
 
diff --git a/roles/matrix-bridge-mx-puppet-steam/defaults/main.yml b/roles/matrix-bridge-mx-puppet-steam/defaults/main.yml
index 4e3d6bc6..430dc90f 100644
--- a/roles/matrix-bridge-mx-puppet-steam/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-steam/defaults/main.yml
@@ -1,11 +1,11 @@
 ---
 # Mx Puppet Steam is a Matrix <-> Steam bridge
-# See: https://github.com/matrix-steam/mx-puppet-steam
+# Project source code URL: https://github.com/icewind1991/mx-puppet-steam
 
 matrix_mx_puppet_steam_enabled: true
 
 matrix_mx_puppet_steam_container_image_self_build: false
-matrix_mx_puppet_steam_container_image_self_build_repo: "https://github.com/tilosp/mx-puppet-steam.git"
+matrix_mx_puppet_steam_container_image_self_build_repo: "https://github.com/icewind1991/mx-puppet-steam.git"
 
 # Controls whether the mx-puppet-steam container exposes its HTTP port (tcp/8432 in the container).
 #
diff --git a/roles/matrix-bridge-mx-puppet-twitter/defaults/main.yml b/roles/matrix-bridge-mx-puppet-twitter/defaults/main.yml
index 37be2be2..c1b46071 100644
--- a/roles/matrix-bridge-mx-puppet-twitter/defaults/main.yml
+++ b/roles/matrix-bridge-mx-puppet-twitter/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 
 # Mx Puppet Twitter is a Matrix <-> Twitter bridge
-# See: https://github.com/Sorunome/mx-puppet-twitter
+# Project source code URL: https://github.com/Sorunome/mx-puppet-twitter
 
 matrix_mx_puppet_twitter_enabled: true
 
diff --git a/roles/matrix-bridge-sms/defaults/main.yml b/roles/matrix-bridge-sms/defaults/main.yml
index 82ffce6e..8a640f86 100644
--- a/roles/matrix-bridge-sms/defaults/main.yml
+++ b/roles/matrix-bridge-sms/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-sms-bridge is a Matrix <-> SMS bridge
-# See: https://github.com/benkuly/matrix-sms-bridge
+# Project source code URL: https://github.com/benkuly/matrix-sms-bridge
 
 matrix_sms_bridge_enabled: true
 
diff --git a/roles/matrix-client-cinny/defaults/main.yml b/roles/matrix-client-cinny/defaults/main.yml
index 89105800..277f6e0c 100644
--- a/roles/matrix-client-cinny/defaults/main.yml
+++ b/roles/matrix-client-cinny/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/ajbura/cinny
 
 matrix_client_cinny_enabled: true
 
diff --git a/roles/matrix-client-element/defaults/main.yml b/roles/matrix-client-element/defaults/main.yml
index aacc2f11..e93b2c7c 100644
--- a/roles/matrix-client-element/defaults/main.yml
+++ b/roles/matrix-client-element/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/vector-im/element-web
 
 matrix_client_element_enabled: true
 
diff --git a/roles/matrix-client-hydrogen/defaults/main.yml b/roles/matrix-client-hydrogen/defaults/main.yml
index 88d52ba5..5a28ef38 100644
--- a/roles/matrix-client-hydrogen/defaults/main.yml
+++ b/roles/matrix-client-hydrogen/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/vector-im/hydrogen-web
 
 matrix_client_hydrogen_enabled: true
 
diff --git a/roles/matrix-corporal/defaults/main.yml b/roles/matrix-corporal/defaults/main.yml
index bd91564a..1aa512ee 100644
--- a/roles/matrix-corporal/defaults/main.yml
+++ b/roles/matrix-corporal/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-corporal is a reconciliator and gateway for a managed Matrix server.
-# See: https://github.com/devture/matrix-corporal
+# Project source code URL: https://github.com/devture/matrix-corporal
 
 matrix_corporal_enabled: true
 
diff --git a/roles/matrix-coturn/defaults/main.yml b/roles/matrix-coturn/defaults/main.yml
index bf3564cd..0b48616b 100644
--- a/roles/matrix-coturn/defaults/main.yml
+++ b/roles/matrix-coturn/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/coturn/coturn
 
 matrix_coturn_enabled: true
 
diff --git a/roles/matrix-dendrite/defaults/main.yml b/roles/matrix-dendrite/defaults/main.yml
index f3876875..450ae632 100644
--- a/roles/matrix-dendrite/defaults/main.yml
+++ b/roles/matrix-dendrite/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Dendrite is a second-generation Matrix homeserver currently in Beta
-# See: https://github.com/matrix-org/dendrite
+# Project source code URL: https://github.com/matrix-org/dendrite
 
 matrix_dendrite_enabled: true
 
diff --git a/roles/matrix-dimension/defaults/main.yml b/roles/matrix-dimension/defaults/main.yml
index c4da906d..68bd7908 100644
--- a/roles/matrix-dimension/defaults/main.yml
+++ b/roles/matrix-dimension/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/turt2live/matrix-dimension
 
 matrix_dimension_enabled: false
 
diff --git a/roles/matrix-dynamic-dns/defaults/main.yml b/roles/matrix-dynamic-dns/defaults/main.yml
index 95a1188b..97629e15 100644
--- a/roles/matrix-dynamic-dns/defaults/main.yml
+++ b/roles/matrix-dynamic-dns/defaults/main.yml
@@ -1,4 +1,6 @@
 ---
+# Project source code URL: https://github.com/linuxserver/docker-ddclient
+
 # Whether dynamic dns is enabled
 matrix_dynamic_dns_enabled: true
 
diff --git a/roles/matrix-email2matrix/defaults/main.yml b/roles/matrix-email2matrix/defaults/main.yml
index fe5d3399..3084506f 100644
--- a/roles/matrix-email2matrix/defaults/main.yml
+++ b/roles/matrix-email2matrix/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/devture/email2matrix
 
 matrix_email2matrix_enabled: true
 
diff --git a/roles/matrix-etherpad/defaults/main.yml b/roles/matrix-etherpad/defaults/main.yml
index 8a024860..656e43f9 100644
--- a/roles/matrix-etherpad/defaults/main.yml
+++ b/roles/matrix-etherpad/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/ether/etherpad-lite
 
 matrix_etherpad_enabled: false
 
diff --git a/roles/matrix-grafana/defaults/main.yml b/roles/matrix-grafana/defaults/main.yml
index 7765ae48..f411dc52 100644
--- a/roles/matrix-grafana/defaults/main.yml
+++ b/roles/matrix-grafana/defaults/main.yml
@@ -1,6 +1,7 @@
 ---
 # matrix-grafana is open source visualization and analytics software
 # See: https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md
+# Project source code URL: https://github.com/grafana/grafana
 
 matrix_grafana_enabled: false
 
diff --git a/roles/matrix-jitsi/defaults/main.yml b/roles/matrix-jitsi/defaults/main.yml
index 70dc035d..ef6a5735 100644
--- a/roles/matrix-jitsi/defaults/main.yml
+++ b/roles/matrix-jitsi/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/jitsi/docker-jitsi-meet
 
 matrix_jitsi_enabled: true
 
diff --git a/roles/matrix-ma1sd/defaults/main.yml b/roles/matrix-ma1sd/defaults/main.yml
index f1d57049..19aaf189 100644
--- a/roles/matrix-ma1sd/defaults/main.yml
+++ b/roles/matrix-ma1sd/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # ma1sd is a Federated Matrix Identity Server
-# See: https://github.com/ma1uta/ma1sd
+# Project source code URL: https://github.com/ma1uta/ma1sd
 
 matrix_ma1sd_enabled: true
 
diff --git a/roles/matrix-mailer/defaults/main.yml b/roles/matrix-mailer/defaults/main.yml
index 6d3bb2e2..48cd638c 100644
--- a/roles/matrix-mailer/defaults/main.yml
+++ b/roles/matrix-mailer/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/devture/exim-relay
 
 matrix_mailer_enabled: true
 
diff --git a/roles/matrix-nginx-proxy/defaults/main.yml b/roles/matrix-nginx-proxy/defaults/main.yml
index f9b7a019..8da1268d 100644
--- a/roles/matrix-nginx-proxy/defaults/main.yml
+++ b/roles/matrix-nginx-proxy/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/nginx/nginx
 matrix_nginx_proxy_enabled: true
 matrix_nginx_proxy_version: 1.21.6-alpine
 
diff --git a/roles/matrix-ntfy/defaults/main.yml b/roles/matrix-ntfy/defaults/main.yml
index d5fc3fba..96e9e69d 100644
--- a/roles/matrix-ntfy/defaults/main.yml
+++ b/roles/matrix-ntfy/defaults/main.yml
@@ -1,4 +1,6 @@
 ---
+# Project source code URL: https://github.com/binwiederhier/ntfy
+
 matrix_ntfy_enabled: true
 
 matrix_ntfy_base_path: "{{ matrix_base_data_path }}/ntfy"
diff --git a/roles/matrix-postgres-backup/defaults/main.yml b/roles/matrix-postgres-backup/defaults/main.yml
index 59ae5076..ed42266f 100644
--- a/roles/matrix-postgres-backup/defaults/main.yml
+++ b/roles/matrix-postgres-backup/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/prodrigestivill/docker-postgres-backup-local
 
 matrix_postgres_backup_enabled: false
 
diff --git a/roles/matrix-postgres/defaults/main.yml b/roles/matrix-postgres/defaults/main.yml
index b6cbc205..3a4d73be 100644
--- a/roles/matrix-postgres/defaults/main.yml
+++ b/roles/matrix-postgres/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/postgres/postgres
 
 # Controls if the Postgres server managed by the playbook is enabled.
 # You can turn it off and use an external Postgres server by setting this to `false`.
diff --git a/roles/matrix-prometheus-node-exporter/defaults/main.yml b/roles/matrix-prometheus-node-exporter/defaults/main.yml
index d061d59c..d9077697 100644
--- a/roles/matrix-prometheus-node-exporter/defaults/main.yml
+++ b/roles/matrix-prometheus-node-exporter/defaults/main.yml
@@ -1,6 +1,7 @@
 ---
 # matrix-prometheus-node-exporter is an Prometheus exporter for machine metrics
 # See: https://prometheus.io/docs/guides/node-exporter/
+# Project source code URL: https://github.com/prometheus/node_exporter
 
 matrix_prometheus_node_exporter_enabled: false
 
diff --git a/roles/matrix-prometheus-postgres-exporter/defaults/main.yml b/roles/matrix-prometheus-postgres-exporter/defaults/main.yml
index 8c3f435e..b7cd08b9 100644
--- a/roles/matrix-prometheus-postgres-exporter/defaults/main.yml
+++ b/roles/matrix-prometheus-postgres-exporter/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-prometheus-postgres-exporter is an Prometheus exporter for postgres metrics
-# See: https://github.com/prometheus-community/postgres_exporter
+# Project source code URL: https://github.com/prometheus-community/postgres_exporter
 
 matrix_prometheus_postgres_exporter_enabled: false
 
diff --git a/roles/matrix-prometheus/defaults/main.yml b/roles/matrix-prometheus/defaults/main.yml
index 28395bd9..b7b05bed 100644
--- a/roles/matrix-prometheus/defaults/main.yml
+++ b/roles/matrix-prometheus/defaults/main.yml
@@ -1,6 +1,7 @@
 ---
 # matrix-prometheus is an open-source systems monitoring and alerting toolkit
 # See: https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md
+# Project source code URL: https://github.com/prometheus/prometheus
 
 matrix_prometheus_enabled: false
 
diff --git a/roles/matrix-redis/defaults/main.yml b/roles/matrix-redis/defaults/main.yml
index 88d3d739..4454355e 100644
--- a/roles/matrix-redis/defaults/main.yml
+++ b/roles/matrix-redis/defaults/main.yml
@@ -1,4 +1,5 @@
 ---
+# Project source code URL: https://github.com/redis/redis
 
 matrix_redis_enabled: true
 
diff --git a/roles/matrix-registration/defaults/main.yml b/roles/matrix-registration/defaults/main.yml
index a5db3022..9f4c673c 100644
--- a/roles/matrix-registration/defaults/main.yml
+++ b/roles/matrix-registration/defaults/main.yml
@@ -1,6 +1,7 @@
 ---
 # matrix-registration is a simple python application to have a token based matrix registration
 # See: https://zeratax.github.io/matrix-registration/
+# Project source code URL: https://github.com/ZerataX/matrix-registration
 
 matrix_registration_enabled: true
 
diff --git a/roles/matrix-sygnal/defaults/main.yml b/roles/matrix-sygnal/defaults/main.yml
index 15bce68c..15015a97 100644
--- a/roles/matrix-sygnal/defaults/main.yml
+++ b/roles/matrix-sygnal/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 # Sygnal is a reference Push Gateway for Matrix.
 # To make use of it for delivering push notificatins, you'll need to develop/build your own Matrix app.
-# Learn more here: https://github.com/matrix-org/sygnal
+# Project source code URL: https://github.com/matrix-org/sygnal
 matrix_sygnal_enabled: false
 
 matrix_sygnal_base_path: "{{ matrix_base_data_path }}/sygnal"
diff --git a/roles/matrix-synapse-admin/defaults/main.yml b/roles/matrix-synapse-admin/defaults/main.yml
index 0aa19e86..9f4510b6 100644
--- a/roles/matrix-synapse-admin/defaults/main.yml
+++ b/roles/matrix-synapse-admin/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # matrix-synapse-admin is a web UI for mananging the Synapse Matrix server
-# See: https://github.com/Awesome-Technologies/synapse-admin
+# Project source code URL: https://github.com/Awesome-Technologies/synapse-admin
 
 matrix_synapse_admin_enabled: true
 
diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index 1925ffc2..de8bfdca 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 # Synapse is a Matrix homeserver
-# See: https://github.com/matrix-org/synapse
+# Project source code URL: https://github.com/matrix-org/synapse
 
 matrix_synapse_enabled: true