Yes! This is command-log-mode which can be installed from Melpa.

You have to add the function to whatever modes you want to record, like

(add-hook 'python-mode-hook 'command-log-mode)

Then, to invoke the log window as shown in the video

M-x clm/open-command-log-buffer

Open a Python file (in my example) and start manipulating the code to see your actions in the command log buffer.

Yes! This is command-log-mode which can be installed from Melpa.

You have to add the function to whatever modes you want to record, like

(add-hook 'python-mode-hook 'command-log-mode)

Then, to invoke the log window as shown in the video

M-x clm/open-command-log-buffer

Open a Python file (in my example) and start manipulating the code to see your actions in the command log buffer.

There is also M-x global-command-log-mode to capture all (or most) interactions across modes.