n/essentialsoftware.md: add forgotten Celluloid & Haruna

n/essentialsoftware.md

@@ -204,7 +204,7 @@ bit...
 sudo fedora-third-party enable
 
 # Layer packages I need on top of the base image.
-sudo rpm-ostree install android-tools cronie cronie-anacron darkman duperemove foot foot-terminfo gamescope git-lfs haveged iwd mangohud mosh mpv oidentd rng-tools setroubleshoot snapd sshguard steam-devices syncthing terminus-fonts-console tmux tor torsocks unbound zsh
+sudo rpm-ostree install android-tools celluloid cronie cronie-anacron darkman duperemove foot foot-terminfo gamescope git-lfs haruna haveged iwd mangohud mosh mpv oidentd rng-tools setroubleshoot snapd sshguard steam-devices syncthing terminus-fonts-console tmux tor torsocks unbound zsh
 
 # Enable automatic updates (check /etc/rpm-ostreed.conf for
 # AutomaticUpdatePolicy=stage (or apply for automatic reboots at probably
@@ -278,6 +278,8 @@ sudo rpm-ostree kargs --delete=rhgb --delete=quiet --delete=rootflags=subvol=roo
   - For
     [hevc playback support](https://discussion.fedoraproject.org/t/how-do-i-enable-h265-hevc-playback-in-fedora-41-or-42-2025/147870),
     `sudo rpm-ostree install libavcodec-freeworld`
+  - VirtualBox? Also at rpmfusion,
+    `sudo rpm-ostree install akmod-VirtualBox VirtualBox`
 
 ### Flatpaks