According to @lightspark, Grid rails are now open, enabling builders to drop Bitcoin rewards, spin up payouts, and move USD to BTC to a wallet in seconds (source: Lightspark on X, Oct 25, 2025). The announcement specifies instant USD→BTC conversion for rewards and payout flows (source: Lightspark on X, Oct 25, 2025). Access and implementation details are available via the Lightspark Grid Explore page and Grid documentation (source: lightspark.com/grid; grid.lightspark.com).