Two more model sources behind the gateway, because candidates from a different model fail differently where more replicas of the same model do not: - qwen3.8-27b-fast-2: qwen3.8-27b on a new four-card GPU VM (bench/gpu-vm/), 16 in flight; absolute-seam batch after the prompt fixes 8/32 compiled, best 82/108. - deepseek-v4.1-flash: DeepSeek-V4.1-Flash EXL3 on a two-node ARM pair (bench/sparks/dsv41/), its own proxy frontend; first batch 4/8 compiled, best 82/108. qwen3.8-flash-next drops to two replicas and 16 in flight. - bench/rig-snapshot.sh snapshots and restores each rig role's serving configs; bench/sparks/hf-to-nas.sh fetches weights to the NAS. - docs/infrastructure.md gains the rig change log; measurements in docs/model-first-cost.md and docs/rig-capacity.md. Hosts are named by role only.