After that, it's just the matter of putting a crontab job to run archive job every night. Note that i have no way yet to know when the mouse move in macosx as xdotool no longer work with mac so right now it takes screenshot of every monitor and resize it down... it might be too much and could eat up your HDD. i like the nix version since I did a dirty job with mouse location so whenever i take a break from incident or walk away from my desk, the screenshot script stops.