How we built $BRACKETS — a FIFA World Cup 2026 fantasy league where players sign in with Google, Facebook, or a Solana wallet and compete for $BRACKETS and USDC prizes in 170+ countries. Most fantasy sports platforms force you to choose — either build for crypto natives and lose casual users, or build for casual users and lock out the Web3 crowd entirely. We refused to pick. $BRACKETS is a FIFA World Cup 2026 fantasy league that works for everyone. Casual fans sign in with Google or Facebook and never touch a wallet. Crypto natives connect Phantom or Solflare and sign a message. Both play the same game, compete on the same leaderboard, and win the same USDC prizes — paid directly to their wallet regardless of how they signed up.…