Bumblebee is an auxiliary tool for NVidia graphics cards on the Linux platform. It enables NVidia cards to utilize Optimus technology, allowing laptops to render with dedicated graphics while displaying through integrated graphics—essentially hardware-accelerated graphics switching. This is an extremely useful tool, but it once suffered a severe bug (though three years ago) where a single space caused the deletion of the /usr directory for a large number of Ubuntu users. It happened during a Git update, with changes in install.sh : @@ -37,7 +37,7 @@ # You should have received a copy of the GNU General Public License # along with bumblebee. If not, see <http://www.gnu.org/licenses/>. # -BUMBLEBEEVERSION=1.4.31 +BUMBLEBEEVERSION=1.4.32 ROOT_UID=0 @@ -348,7 +348,...

The school's course selection system opened at 12:00 for club sign-ups, using a snatching mechanism—limited spots, first-come-first-served. Having used this system before for elective courses, I logged in early (no courses were displayed yet). Starting at 11:59:30, I kept refreshing the page repeatedly, waiting for the courses to appear. At exactly 12:00, the courses popped up. I immediately clicked on my desired club. Instantly, a window flashed on the screen: "Registration failed! Schedule conflict!" Upon closer inspection: The club sessions were all scheduled for Monday and Tuesday's eighth period (though not actually at that time), while my previous electics occupied Monday/Tuesday/Thursday's seventh-eighth periods and Wednesday's fifth-sixth periods. Total conflict... Later,...