How the ELO rating works?

• Every vote is treated like a head-to-head match. We calculate each tool's expected win probability using the classic ELO formula (rating difference / 400).
• Tools with fewer votes use a higher K-factor so they move up or down quickly. Established tools have a low K-factor, so one upset doesn't cause chaos.
• Winners gain points, losers drop the same amount. We increment matchesWon/matchesLost and totalVotes so win-rate stats stay accurate.
• Geometry mode runs on a completely separate ELO track focused on clean topology, independent from overall looks.