diff --git a/messanger/matrix/features/history-jump.txt b/messanger/matrix/features/history-jump.txt
index 4cf9bff9e..f705a01a0 100644
--- a/messanger/matrix/features/history-jump.txt
+++ b/messanger/matrix/features/history-jump.txt
@@ -1,3 +1,14 @@
+https://github.com/matrix-org/matrix-spec-proposals/pull/3030
+    https://github.com/matrix-org/matrix-spec/pull/1366
+    https://github.com/matrix-org/matrix-js-sdk/pull/2915
+    https://github.com/ruma/ruma/pull/1427
+    https://github.com/matrix-org/matrix-spec/blob/main/data/api/client-server/room_event_by_timestamp.yaml#L30
+    https://github.com/matrix-org/synapse/issues/14390
+        https://github.com/matrix-org/synapse/pull/14471
+    https://github.com/vector-im/element-web/issues/24079
+        closed
+    turt2live, Travis Ralston 
+
 MCS3030 - jump-to-date-api  /timestamp_to_event
     https://github.com/matrix-org/matrix-doc/pull/3030
     ! already merged
diff --git a/os/linux/internals/kernel/docs/presentations.txt b/os/linux/internals/kernel/docs/presentations.txt
index 517b36de0..e982390a4 100644
--- a/os/linux/internals/kernel/docs/presentations.txt
+++ b/os/linux/internals/kernel/docs/presentations.txt
@@ -1,3 +1,6 @@
 2024
 DJWare - Why Compile a Linux Kernel from Source? 0:00 of 13:37
     https://www.youtube.com/watch?v=s95hjvFAE5g
+2021
+howtonetwork - Understanding the Linux Kernel l Lesson and Labs 0:00 of 1:13:39
+    https://www.youtube.com/watch?v=9wQYadLex8Y
diff --git a/os/linux/nixos/docs/presentations.txt b/os/linux/nixos/docs/presentations.txt
index b88df9795..493a943ba 100644
--- a/os/linux/nixos/docs/presentations.txt
+++ b/os/linux/nixos/docs/presentations.txt
@@ -1,4 +1,6 @@
 2025
+TheLinuxCast - My First 7 Days on NixOS 0:00 of 16:30
+    https://www.youtube.com/watch?v=tBCwIkqhLCo
 Nix auf einem Server ist ganz schön viel! 0:00 of 34:22
     https://www.youtube.com/watch?v=JF-a5rAQgn4
     https://programm.froscon.org/2025/events/3335.html
diff --git a/pages/pages.txt b/pages/pages.txt
index e400d7af7..1a5ba7eb1 100644
--- a/pages/pages.txt
+++ b/pages/pages.txt
@@ -1,23 +1,8 @@
 https://helppay.mdom.by/
 https://github.com/PragmaTech-GmbH/spring-test-profiler
 
-gstreamer
-https://discussion.fedoraproject.org/t/gstreamer-package-conflicts-after-update-to-kde-6-4/156013/
-https://www.reddit.com/r/Fedora/comments/1an225o/gstreamer_conflict_during_dnf_upmin_on_f39/
-https://forums.almalinux.org/t/gstreamer-update-blocker-solved/5935
-    sudo dnf remove gstreamer1-plugins-bad-free    
-    sudo dnf install gstreamer1-plugins-bad-free
-
-viber
-https://idroot.us/install-viber-fedora-41/
-    wget -c https://download.cdn.viber.com/desktop/Linux/viber.rpm
-    sudo dnf localinstall viber.rpm
-    sudo rpm -i viber.rpm
-    error: Failed dependencies:
-            gstreamer1-plugins-bad-free(x86-64) is needed by viber-24.9.0.3-2.x86_64
-https://www.viber.com/en/download/
-    ?appimage
-
+?
+copr-be.cloud.fedoraproject.org SEC_ERROR_EXPIRED_CERTIFICATE
 
 TODO !!! Ask Ezenin regarding Interview
 Idea: Select in -> Project Structure hotkey (A-F1 - 1)
diff --git a/pages/track.txt b/pages/track.txt
index 14a52e124..c426bb4c2 100644
--- a/pages/track.txt
+++ b/pages/track.txt
@@ -1,22 +1,5 @@
-bm
-    566
-asdf-plugins
-    60  camunda-modeller
-https://github.com/matrix-org/matrix-spec-proposals/pull/3030
-    https://github.com/matrix-org/matrix-spec/pull/1366
-    https://github.com/matrix-org/matrix-js-sdk/pull/2915
-    https://github.com/ruma/ruma/pull/1427
-    https://github.com/matrix-org/matrix-spec/blob/main/data/api/client-server/room_event_by_timestamp.yaml#L30
-    https://github.com/matrix-org/synapse/issues/14390
-        https://github.com/matrix-org/synapse/pull/14471
-    https://github.com/vector-im/element-web/issues/24079
-        closed
-    turt2live, Travis Ralston 
-
 https://community-z.com/events/magiqans-tech-talk-26/talks/17947
 
-Razbor Poletov                                      
-    https://razborpoletov.com/2023/09/episode-265.html
 ACCU Overload                                       - 161..169
     https://accu.org/journals/overload/overload161
     https://accu.org/index.php/journals/c78/