Misc: update tmux config & document OBS setup

- Tmux: change binds & set session working directory
- OBS: use flatpak with background removal plugin

auto/tmux/.tmux.conf

@@ -19,8 +19,10 @@ unbind Right
 
 bind C-q send-prefix
 bind S set status
-bind r source-file ~/.tmux.conf \; display "Reloaded tmux config."
-bind s setw synchronize-panes
+bind R source-file ~/.tmux.conf \; display "Reloaded tmux config"
+bind b setw synchronize-panes
+bind a attach -c "#{pane_current_path}" \; \
+	display "New session working directory: #{pane_current_path}"
 
 bind h split-window -h
 bind v split-window -v

setup/ubuntu-setup.md

@@ -89,6 +89,10 @@ Here's my personal Ubuntu 23.04 setup.  (Make sure to use Wayland on Nvidia!)
 	- `flatpak install flathub com.slack.Slack`
 - Denaro
 	- `flatpak install flathub org.nickvision.money`
+- OBS
+	- `flatpak install flathub com.obsproject.Studio`
+	- Background removal plugin:
+		- `flatpak install com.obsproject.Studio.Plugin.BackgroundRemoval`
 
 ## Optional Apps
 

setup/ubuntu-user-config.md

@@ -71,6 +71,12 @@ directory.
 - Reason:
   `https://github.com/flathub/ide-flatpak-wrapper/blob/master/vscode.sh`
 
+## OBS Basic Settings
+
+- Video: 1440p HVENC HEVC
+- Audio: 320k Opus
+- Container: Matroska
+
 ## OBS record audio per app (may need adjustment > 22.04)
 
 ```