diff --git a/modules/cli/tmux-sessionizer.sh b/modules/cli/tmux-sessionizer.sh
index fef208b..2df4973 100644
--- a/modules/cli/tmux-sessionizer.sh
+++ b/modules/cli/tmux-sessionizer.sh
@@ -18,8 +18,14 @@ if [[ -z $TMUX ]] && [[ -z $tmux_running ]]; then
 	exit 0
 fi
 
+current_session=$(tmux display-message -p "#S")
+
 if ! tmux has-session "-t=$selected_name" 2> /dev/null; then
 	tmux new-session -ds "$selected_name" -c "$selected"
 fi
 
 tmux switch-client -t "$selected_name"
+
+if [[ "$current_session" == \#* ]]; then
+	tmux kill-session -t "$current_session"
+fi
diff --git a/modules/cli/zsh/default.nix b/modules/cli/zsh/default.nix
index b972d6d..89266d8 100644
--- a/modules/cli/zsh/default.nix
+++ b/modules/cli/zsh/default.nix
@@ -188,6 +188,7 @@
       py = "python3 2> /dev/null || nix shell nixpkgs#python3 -c python3";
       jctl = "sudo journalctl -n 1000 -fu";
       sloc = "scc";
+      mi = "mediainfo";
       # viu doesn't work with tmux, icat does. using that while waiting
       viu = "kitty +kitten icat";
       icat = "kitty +kitten icat";
@@ -234,7 +235,7 @@
     initExtraFirst = ''
       # Create a new tmux session (with a random name) and attach.
       if [[ -z "$TMUX" ]]; then
-      	exec tmux -u new-session -s "$(hexdump -n 4 -v -e '/1 "%02X"' /dev/urandom)"
+      	exec tmux -u new-session -s "#$(hexdump -n 4 -v -e '/1 "%02X"' /dev/urandom)"
       fi
     '';
     initExtraBeforeCompInit = builtins.readFile ./comp.zsh;