You can show private contributions on the github profile by doing
Profile icon at the top right → Settings → Contributions & Activity → “Include private contributions on my profile” → check → “Update preferences”
Ctrl-Alt-t
will open a terminal window on Debian.
Ref:- http://automatetheboringstuff.com/2e/appendixb/ → “Running Programs from the Terminal Window” section → second paragrah → last line. The page mentions that it works on Ubuntu Linux. But when I tried it on Debian Linux (11.4; bullseye), it worked and opened a konsole.