Tmux: Start multiple tabs in 1 command

One thing I usually do when I start developing the web is

1. open frontend
2. open backend
3. run frontend app
4. run backend app

This is time consuming and I would rather write on script to do it.

Here is the script

file: myapp.tmux
new-session myapp
rename-session myapp
rename-window myapp
send "cd ~/development/myapp-frontend && yarn local" C-m
split-window -h
send "cd ~/development/myapp-backend && yarn local" C-m
split-window -v
send "cd ~/development/myapp-backend" C-m
select-pane -t 0
split-window -v
send "cd ~/development/myapp-frontend" C-m

This can be open with tmux by the command

$ tmux source-file myapp.tmux

Hope this help !