A new Hetzner account is capped at 10 primary IPs (IPv4 and IPv6 both count), 20 shared vCPUs, 8 dedicated
vCPUs and no Arm, and a network cannot span zones. So: one private network per zone (10.20.<zone>.0/24),
the lowest-index node of each zone keeps a public IPv4 and is its gateway (NAT, MSS clamp, one DNAT port
27000+index per private node, persisted as igneum-nat.service), every other node has no public address.
nodes.tsv gains access, pub and port columns; lib resolves same-zone vs cross-zone dial addresses and jumps
ssh through the gateway for private nodes. All nodes.tsv loops read on fd 3 (a backgrounded ssh drained the
file). TYPE_BY_INDEX puts nodes 8 to 11 on ccx13; node 12 is the last shared one the account allows.
create.sh prints the plan's cost from the live API. provision.sh install takes node names and skips binaries
whose sha256 matches. Binaries copied from the seed's staged v4 build (same sources), no vCPU for a builder.
Results 2026-10-04: RTT matrix (hel1-fsn1 35 ms, ash-sin 289 ms) and a 10-minute propagation window of 644
blocks: p50 343 ms, p90 497 ms, p99 666 ms across 12 nodes in 5 locations.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
infra/cross/build-linux.sh builds igneumd and igneum-miner for x86_64-unknown-linux-gnu.2.36 (Debian 12) with
cargo-zigbuild 0.23.4 and zig 0.17.0 into vendor/igneum-node/target-linux: rocksdb, lz4, blst, secp256k1 and the
execution layer all link through zig, no crate failed (Docker is absent here, so cross was not needed). Cold build
1,856 s at 4 jobs, nice 19, on a loaded Mac; the seed's own build took 55 min and the builder VM 10 to 25.
Verified on igneum-seed-1 in /root/xbuild-test: igneumd --version, igneum-miner --help, and a 60-s private
network with real proof of work where the cross-compiled miner found 7 blocks that the cross-compiled node
accepted (0 rejected). /opt/igneum/v4/bin untouched.
BIN_SOURCE=mac: provision.sh skips the builder VM and takes build/bin from the cross-compile; stage-v4.sh
cross-compiles, uploads to /root/v4/out and installs exactly as a VM build would.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
infra/fast-time/override-60x.json is the devnet with every clock-like consensus parameter divided by 60 and every
block count unchanged (finality window, ban and min_daa 120 DAA; merge depth 60; Kaspa finality depth 720; pruning
depth at the anticone bound 13,838; coinbase maturity 2; the hourly program epoch 60 blocks with a 10-block lead;
the dataset day 24 minutes). The epoch length, lead and day are consensus parameters of the node since devnet-v4
a5ef8b07, carried by the override file. README lists each field, why it scales or not, the flags and the numbers.
Measured (simnet.mjs, three devnet-v4 nodes, three vmine voters at 1 block/s, one real-hash CPU miner): next
epoch seed in the template at 56.1 s, program swap at 65.1 s wall (DAA 60), first finality lock at 185.5 s wall
(checkpoint 5, DAA 149). Both harnesses take --fast-time: finality-attacks s3 PASS in 113 s wall with 16 locks
per node (the devnet rule needs 20 min of warm-up at 6 blocks/s before any lock); harness s3 partition and heal
43 s wall for three cuts against 983 s for four on the devnet profile with the same binary. Bench-log entry.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The first stage run built v4 on igneum-seed-1 in 60 min 49 s and then failed on `igneumd --version | head -1` under
pipefail, because the devnet-v4 igneumd prints its version and exits 1. The post-build steps now write to files and
test them; the tarball is unpacked once per src.stamp so a rerun is incremental; `stage-v4.sh <seed> resume` reruns
the build script on the tree already on the VM and then waits and installs.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Windows combined package 0.2.0 (proto-cuda/windows-app): v4 exes from target-integration, peers = seed then Mac,
fresh appdir devnet-v4, one miner and one worker per card with --identities 8, --evm-address (PAYOUT_EVM or derived
per vendor from the PC name), voting on (VOTE=0 opts out), --prepare-packs for the hot swap with --exit-on-seed-change
as the fallback, --yes on the node, STATUS regex tolerant of the v4 now= segment, version in the dashboard header.
Mac app 0.2.0 (packaging/mac): v4 binaries, Metal worker rebuilt for macOS 11, data folder devnet-v4, EVM payout,
identities in one process, synced= flag honoured. Seed (infra/seed-nodes): stage-v4.sh builds v4 on the VM as a
niced, memory-capped transient service and installs a disabled igneumd-v4 unit with a fresh data dir; switch-v4.sh
swaps the units (--back reverses); health.sh reports active-v4. Runbook: docs/plans/cutover-2026-10-04.md.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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>
