A feature-flag rollout picker where blast radius is computed as literal site percolation: user segments are cells in a declared-adjacency lattice, the rollout percentage wets a fixed-order prefix of cells, and union-find continuously finds the largest connected wet cluster. Its traced perimeter and percentage are the honest readout a plain rollout number hides, with a cliff at the lattice's own measured containment threshold rather than a smooth curve.
pnpm dlx shadcn@latest add "https://design.helpmarq.com/r/seep-lattice.json"