igneum-seed-1 (Hetzner cx23, fsn1, 188.245.5.161:26611): built on the VM in 1,530 s, synced to the live devnet
(12,204 blocks, same sink as the live node) through a non-mining relay igneumd on the Mac (the live node's addPeer
RPC is refused in safe mode); the live node and the Windows PC learned the seed's address by peer exchange and dialled
it. seeds.txt written. Hetzner prices corrected to USD (pricing API currency) in the plans, READMEs and scripts;
current-generation types per location (cx23 EU, cpx22 sin, cpx21 US) in the cloud-devnet config.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
infra/cloud-devnet: hcloud (doctl variant) create, builder-VM provision from a git-archive source tarball,
systemd units for igneumd --devnet-suffix with a sparse --addpeer mesh and a CPU trickle miner per node,
stdlib wRPC client, experiments (latency, partition, hop, collect, observer hookup), README with the command
sequence and the Hetzner API prices of 3 Oct 2026.
infra/gpu-bench: RunPod image recipes (CUDA 12.8, ROCm), bundle, run.sh (vectors gate, 10-min raw, sweep,
inline shortcut ratio, nvcc/NVRTC/OpenCL recompile timings, results row, intake upload), bench-log template.
infra/seed-nodes: create-seed (persistent IPv4, firewall), provision on the VM, health check, addPeer from the
Mac over grpcurl, seeds.txt; igneum-seed-1 created at 188.245.5.161 (Hetzner cx23, fsn1).
docs/plans/cloud-devnet.md and docs/plans/seed-nodes.md.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
