gistfile1.txt

λ cat ~/.tmux.conf
# Don't use login shell in tmux
set -g default-command /bin/zsh

# Change default prefix to Ctrl-q
unbind C-b
set -g prefix C-q

# Pane switching with Alt-<arrow> keys
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U \; resize-pane -Z
bind -n M-Down select-pane -D

# Add a binding to toggle status line
bind v set status

# Display tmux session name in the tab title
set-option -g set-titles on
set-option -g set-titles-string "#S:#{pane_current_command}"

# Eliminate ESC key delay
set -sg escape-time 0

# Activity monitoring
setw -g monitor-activity on
set -g visual-activity off

# Disable status line by default
set -g status off
# Enable mouse pane switching
set-option -g mouse-select-pane on

# Toggle mouse scrolling
setw -g mode-mouse on

# Set up proper terminal with 256 colors
set -g default-terminal "screen-256color"

# Highlight active window
set-window-option -g window-status-current-bg yellow

# Set up a shortcut for an env
bind c source-file ~/.tmux/code-term

gistfile2.txt

λ cat ~/.tmux/code-term
# Set up two horizontal panes.
# The one on the bottom is 10 lines high and runs a terminal
# The one on the top can be used to open vim

selectp -t 0    # select the first (0) pane
splitw -v -l 10 # split it into two parts
selectp -t 0    # go back to the first pane
resize-pane -Z  # zoom it in