diff --git a/pages/linux.server.md b/pages/linux.server.md
index c4acfea..8786241 100644
--- a/pages/linux.server.md
+++ b/pages/linux.server.md
@@ -25,7 +25,7 @@
 - deja dup?
 - ipfs [[ipfs.selfhosting]]
 - wallabag
-- netdata 
+- netdata - healtchecks.io
 
 - https://www.addictivetips.com/ubuntu-linux-tips/best-linux-home-server-apps/
 - https://github.com/zilexa/Homeserver
@@ -46,6 +46,8 @@
 - jellyfin - https://jellyfin.org/
 ## desktop enviroment
 ### i3
+- https://kifarunix.com/install-and-setup-i3-windows-manager-on-ubuntu-20-04/
+- https://www.cyberithub.com/how-to-install-and-use-i3-window-manager-on-ubuntu-20-04/
 
 ## 101 
 - https://linuxhint.com/run_linux_command_script_sys_reboot/