The documentary entry for the night the driver stopped being a one-track
instrument: the follow bus that already existed and nobody had read, PLN's
carry policy in his own words, the tempo knob that became the clock, and the
transition move the screen now serves. Plus the three findings that cost only
reading (an innocent v2 service, MIDIIn.connectAll, a disproven off-by-one) and
the two traps worth retelling (the detent that welded itself to the first notch
twice, and zsh eating the backticks out of a commit message).