superchain.cs

#!/usr/bin/env dotnet
// SPDX-FileCopyrightText: 2026 Demerzel Solutions Limited
// SPDX-License-Identifier: LGPL-3.0-only
#:package Tomlyn
#:package ZstdSharp.Port

using System.Globalization;
using System.IO.Compression;
using System.Text.Json;
using System.Text.Json.Nodes;
using Tomlyn;
using Tomlyn.Model;
using ZstdSharp;

var output = "output";
var verbose = false;
for (var index = 0; index < args.Length; index++)
{
    if (args[index] is "-v" or "--verbose") verbose = true;
    else if (args[index] is "-o" or "--output" && index + 1 < args.Length) output = args[++index];
    else
    {
        Console.WriteLine("usage: superchain.cs [-v|--verbose] [-o|--output DIRECTORY]");
        return args[index] is "-h" or "--help" ? 0 : 2;
    }
}
var temporary = Directory.CreateTempSubdirectory("superchain-");
var indentedJson = new JsonSerializerOptions { WriteIndented = true };
try
{
    Directory.CreateDirectory(Path.Combine(output, "chainspec"));
    Directory.CreateDirectory(Path.Combine(output, "runner"));
    Log("Downloading Superchain registry");
    using var http = new HttpClient();
    await using (var download = await http.GetStreamAsync("https://github.com/ethereum-optimism/superchain-registry/archive/refs/heads/main.zip"))
    using (var archive = new ZipArchive(download)) archive.ExtractToDirectory(temporary.FullName);
    var registry = Path.Combine(temporary.FullName, "superchain-registry-main");
    var chains = ReadToml(Path.Combine(registry, "chainList.toml"))["chains"]!.AsArray();
    var dictionary = await File.ReadAllBytesAsync(Path.Combine(registry, "superchain", "extra", "dictionary"));
    foreach (var entry in chains)
    {
        var identifier = entry!["identifier"]!.GetValue<string>().Split('/');
        var l1 = identifier[0]; var name = identifier[1];
        if (name is "arena-z-testnet" or "creator-chain-testnet" or "rehearsal-0-bn-0" or "rehearsal-0-bn-1" or "celo" or "radius_testnet" or "silent-data-mainnet" || l1 is "sepolia-dev-0" or "sepolia-devnet-2" or "sepolia-devnet-3")
        {
            Console.WriteLine($"[INFO] Ignoring `{name}-{l1}`");
            continue;
        }
        Log($"Processing `{name}-{l1}`");
        var superchain = ReadToml(Path.Combine(registry, "superchain", "configs", l1, "superchain.toml"));
        var chain = ReadToml(Path.Combine(registry, "superchain", "configs", l1, name + ".toml"));
        await using var compressed = File.OpenRead(Path.Combine(registry, "superchain", "extra", "genesis", l1, name + ".json.zst"));
        await using var decompressed = new DecompressionStream(compressed);
        decompressed.LoadDictionary(dictionary);
        var genesis = (await JsonNode.ParseAsync(decompressed))!;
        var spec = Chainspec(name, l1, superchain, chain, genesis);
        await using (var file = File.Create(Path.Combine(temporary.FullName, $"{name}-{l1}.json")))
        await using (var writer = new Utf8JsonWriter(file)) spec.WriteTo(writer);
        await File.WriteAllTextAsync(Path.Combine(output, "runner", $"{name}-{l1}.json"), Runner(name, l1, chain).ToJsonString(indentedJson));
    }
    Log("Training compression dictionary");
    var files = Directory.GetFiles(temporary.FullName, "*.json");
    var trained = DictBuilder.TrainFromBuffer(files.Select(File.ReadAllBytes), 1 << 16);
    Log("Compressing chainspec files");
    foreach (var file in files)
    {
        Log($"Compressing `{Path.GetFileName(file)}`");
        await using var source = File.OpenRead(file);
        await using var destination = File.Create(Path.Combine(output, "chainspec", Path.GetFileName(file) + ".zst"));
        await using var compression = new CompressionStream(destination);
        compression.LoadDictionary(trained);
        await source.CopyToAsync(compression);
    }
    await File.WriteAllBytesAsync(Path.Combine(output, "chainspec", "dictionary"), trained);
}
finally { temporary.Delete(recursive: true); }
return 0;

void Log(string message)
{
    if (verbose) Console.WriteLine("[DEBUG] " + message);
}

static JsonNode ReadToml(string path) => ConvertToml(Toml.ToModel(File.ReadAllText(path)))!;

static JsonNode? ConvertToml(object? value) => value switch
{
    TomlTable table => new JsonObject(table.Select(pair => KeyValuePair.Create(pair.Key, ConvertToml(pair.Value)))),
    TomlArray array => new JsonArray(array.Select(ConvertToml).ToArray()),
    TomlTableArray array => new JsonArray(array.Select(ConvertToml).ToArray()),
    string text => JsonValue.Create(text),
    long number => JsonValue.Create(number),
    double number => JsonValue.Create(number),
    bool boolean => JsonValue.Create(boolean),
    null => null,
    _ => throw new FormatException($"Unsupported TOML value: {value.GetType().Name}")
};

static JsonNode? Lookup(JsonNode root, params string[] path)
{
    var current = root;
    foreach (var key in path) current = current?[key];
    return current?.DeepClone();
}

static string? Hex(JsonNode? value) => value is null ? null : "0x" + value.GetValue<long>().ToString("x", CultureInfo.InvariantCulture);

static string RequiredHex(JsonNode? value) => Hex(value) ?? throw new FormatException("Missing required numeric chain value");

static JsonObject WithoutNulls(JsonObject value)
{
    foreach (var key in value.Where(pair => pair.Value is null).Select(pair => pair.Key).ToArray()) value.Remove(key);
    return value;
}

static JsonObject Merge(params JsonNode?[] values)
{
    var result = new JsonObject();
    foreach (var value in values)
        foreach (var (key, item) in value!.AsObject())
            result[key] = result[key] is JsonObject left && item is JsonObject right ? Merge(left, right) : item?.DeepClone();
    return result;
}

static JsonObject Accounts(JsonNode genesis) => new(genesis["alloc"]!.AsObject().Select(pair => KeyValuePair.Create("0x" + pair.Key, pair.Value?.DeepClone())));

static JsonObject Chainspec(string chainName, string l1, JsonNode superchain, JsonNode chain, JsonNode genesis)
{
    var constants = new JsonObject
    {
        ["L1BeaconGenesisSlotTime"] = new JsonObject
        {
            ["mainnet"] = 1606824023,
            ["sepolia"] = 1655733600
        },
        ["L1ChainId"] = new JsonObject
        {
            ["mainnet"] = 1,
            ["sepolia"] = 11155111
        },
        ["DepositContractAddress"] = new JsonObject
        {
            ["mainnet"] = "0x00000000219ab540356cbb839cbe05303d7705fa",
            ["sepolia"] = "0x7f02c3e3c98b133055b8b348b2ac625669ed295d"
        }
    };
    var config = Merge(superchain, chain);
    // Registry inheritance only applies to hardforks explicitly present in the chain config.
    foreach (var key in config["hardforks"]!.AsObject().Select(pair => pair.Key).ToArray())
        if (!chain["hardforks"]!.AsObject().ContainsKey(key)) config["hardforks"]!.AsObject().Remove(key);
    var nethermind = new JsonObject
    {
        ["name"] = Lookup(config, "name"),
        ["dataDir"] = $"{chainName}-{l1}",
        ["engine"] = new JsonObject
        {
            ["Optimism"] = new JsonObject
            {
                ["params"] = WithoutNulls(new JsonObject
                {
                    ["regolithTimestamp"] = "0x0",
                    ["bedrockBlockNumber"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
                    ["canyonTimestamp"] = Hex(Lookup(config, "hardforks", "canyon_time")),
                    ["deltaTimestamp"] = Hex(Lookup(config, "hardforks", "delta_time")),
                    ["ecotoneTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
                    ["fjordTimestamp"] = Hex(Lookup(config, "hardforks", "fjord_time")),
                    ["graniteTimestamp"] = Hex(Lookup(config, "hardforks", "granite_time")),
                    ["holoceneTimestamp"] = Hex(Lookup(config, "hardforks", "holocene_time")),
                    ["isthmusTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
                    ["jovianTimestamp"] = Hex(Lookup(config, "hardforks", "jovian_time")),
                    ["karstTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
                    ["canyonBaseFeeChangeDenominator"] = (Lookup(config, "optimism", "eip1559_denominator_canyon")?.ToString() ?? "None"),
                    ["l1FeeRecipient"] = "0x420000000000000000000000000000000000001A",
                    ["l1BlockAddress"] = "0x4200000000000000000000000000000000000015",
                    ["create2DeployerAddress"] = "0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2",
                    ["create2DeployerCode"] = "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"
                })
            },
            ["OptimismCL"] = Merge(new JsonObject
            {
                ["GenesisSystemConfig"] = new JsonObject
                {
                    ["BatcherAddr"] = Lookup(config, "genesis", "system_config", "batcherAddress"),
                    ["Overhead"] = Lookup(config, "genesis", "system_config", "overhead"),
                    ["Scalar"] = Lookup(config, "genesis", "system_config", "scalar"),
                    ["GasLimit"] = Lookup(config, "genesis", "system_config", "gasLimit"),
                    ["EIP1559Params"] = "0x0000000000000000",
                    ["OperatorFeeParams"] = "0x0000000000000000000000000000000000000000000000000000000000000000"
                },
                ["L1BeaconGenesisSlotTime"] = Lookup(constants, "L1BeaconGenesisSlotTime", l1),
                ["L1ChainId"] = Lookup(constants, "L1ChainId", l1),
                ["L1GenesisNumber"] = Lookup(config, "genesis", "l1", "number"),
                ["L1GenesisHash"] = Lookup(config, "genesis", "l1", "hash"),
                ["BatcherInboxAddress"] = Lookup(config, "batch_inbox_addr"),
                ["L2BlockTime"] = Lookup(config, "block_time"),
                ["SeqWindowSize"] = Lookup(config, "seq_window_size"),
                ["ChannelTimeoutBedrock"] = 300,
                ["MaxSequencerDrift"] = Lookup(config, "max_sequencer_drift"),
                ["SystemTransactionSender"] = "0xDeaDDEaDDeAdDeAdDEAdDEaddeAddEAdDEAd0001",
                ["SystemTransactionTo"] = "0x4200000000000000000000000000000000000015",
                ["Nodes"] = new JsonArray(
                    JsonValue.Create("/ip4/148.113.215.57/tcp/9223/p2p/16Uiu2HAm8aSUf4Stw7pKJEzsBiXWfV3gyWDxJymZ1XQN3nt1g8gu"),
                    JsonValue.Create("/ip4/40.160.1.105/tcp/9223/p2p/16Uiu2HAky2Uha3XgRVaBaCHCGoMU972MgkanESat6ApyKU982UJZ"),
                    JsonValue.Create("/ip4/144.76.17.55/tcp/30321/p2p/16Uiu2HAm6yHDvd1uqy9WPXwh1o57CtmyPLo8sugE2Ky8uzpksQFa"),
                    JsonValue.Create("/ip4/16.62.148.134/tcp/9222/p2p/16Uiu2HAmFayrxPwx4p7U3ahZtE57KzecnyuqbUrFemzp7j66HV4Y"),
                    JsonValue.Create("/ip4/167.235.91.92/tcp/9222/p2p/16Uiu2HAm4ro1o8Zhw6XfjxWhkbRwHF2TNNoK8ZM1cMUp3z1bU2Qv"),
                    JsonValue.Create("/ip4/16.62.139.228/tcp/9222/p2p/16Uiu2HAmDVP7huC3uZy2Eifd8d5UN4Jiu2rHBUAgyF9CB956ftPs"),
                    JsonValue.Create("/ip4/15.204.105.1/tcp/9222/p2p/16Uiu2HAm77PPudgtf94YN5DYi3PYRJETffKnT6dHG1Lwgb6tXiNg"),
                    JsonValue.Create("/ip4/185.185.51.127/tcp/9003/p2p/16Uiu2HAmMF8ErQ9dp7cmf2e3du5wjib9RYVVnR6JmGGff8YPVS4t"),
                    JsonValue.Create("/ip4/16.63.201.250/tcp/9222/p2p/16Uiu2HAkvVQqLJXzpTXwpaqF76bBEc8jJeRJAU1Z1eN9YKj154eJ"),
                    JsonValue.Create("/ip4/135.181.216.232/tcp/900/p2p/16Uiu2HAmJdoZp5vFhLpYkvyYKotWNZW4rvunSc3jCtuHKkzCcssG3"),
                    JsonValue.Create("/ip4/40.160.21.9/tcp/9222/p2p/16Uiu2HAmEbdyXFy3f8kbC86jqnn1EZ2WAdytjtioRJ7d8fnYc2Jw"),
                    JsonValue.Create("/ip4/162.55.232.96/tcp/15629/p2p/16Uiu2HAmUwwtLFeHeJZL5T5oEAwgArjo3UbzkTgyku5twRnRNiqY"),
                    JsonValue.Create("/ip4/176.9.123.83/tcp/9222/p2p/16Uiu2HAmU121HqRzryi8Dev3E4VoMMtG2Av6okTnbdQSK54EZMqU"),
                    JsonValue.Create("/ip4/5.9.80.215/tcp/9222/p2p/16Uiu2HAkvrrKbiUkS6XzoXiBzcpLqkFSkpgpBPtxzRwRjEcgTdCB"))
            }, Lookup(config, "roles"), Lookup(config, "addresses"))
        },
        ["params"] = WithoutNulls(new JsonObject
        {
            ["chainId"] = RequiredHex(Lookup(config, "chain_id")),
            ["gasLimitBoundDivisor"] = "0x400",
            ["accountStartNonce"] = "0x0",
            ["maximumExtraDataSize"] = "0x20",
            ["minGasLimit"] = "0x1388",
            ["forkBlock"] = "0x0",
            ["maxCodeSize"] = "0x6000",
            ["maxCodeSizeTransition"] = "0x0",
            ["eip150Transition"] = "0x0",
            ["eip160Transition"] = "0x0",
            ["eip161abcTransition"] = "0x0",
            ["eip161dTransition"] = "0x0",
            ["eip155Transition"] = "0x0",
            ["eip140Transition"] = "0x0",
            ["eip211Transition"] = "0x0",
            ["eip214Transition"] = "0x0",
            ["eip658Transition"] = "0x0",
            ["eip145Transition"] = "0x0",
            ["eip1014Transition"] = "0x0",
            ["eip1052Transition"] = "0x0",
            ["eip1283Transition"] = "0x0",
            ["eip1283DisableTransition"] = "0x0",
            ["eip152Transition"] = "0x0",
            ["eip1108Transition"] = "0x0",
            ["eip1344Transition"] = "0x0",
            ["eip1884Transition"] = "0x0",
            ["eip2028Transition"] = "0x0",
            ["eip2200Transition"] = "0x0",
            ["eip2565Transition"] = "0x0",
            ["eip2718Transition"] = "0x0",
            ["eip2929Transition"] = "0x0",
            ["eip2930Transition"] = "0x0",
            ["eip1559Transition"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
            ["eip1559FeeCollectorTransition"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
            ["feeCollector"] = "0x4200000000000000000000000000000000000019",
            ["eip1559ElasticityMultiplier"] = RequiredHex(Lookup(config, "optimism", "eip1559_elasticity")),
            ["eip1559BaseFeeMaxChangeDenominator"] = RequiredHex(Lookup(config, "optimism", "eip1559_denominator")),
            ["eip3198Transition"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
            ["eip3529Transition"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
            ["eip3541Transition"] = RequiredHex(Lookup(config, "genesis", "l2", "number")),
            ["eip4895TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "canyon_time")),
            ["eip3651TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "canyon_time")),
            ["eip3855TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "canyon_time")),
            ["eip3860TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "canyon_time")),
            ["eip1153TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
            ["eip4788TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
            ["eip4844TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
            ["eip5656TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
            ["eip6780TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "ecotone_time")),
            ["rip7212TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "fjord_time")),
            ["opGraniteTransitionTimestamp"] = Hex(Lookup(config, "hardforks", "granite_time")),
            ["opHoloceneTransitionTimestamp"] = Hex(Lookup(config, "hardforks", "holocene_time")),
            ["opIsthmusTransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["opJovianTransitionTimestamp"] = Hex(Lookup(config, "hardforks", "jovian_time")),
            ["opKarstTransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7702TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip2537TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip2935TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip7623TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip6110TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip7685TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "isthmus_time")),
            ["eip7642TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7823TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7825TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7883TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7910TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7939TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["eip7951TransitionTimestamp"] = Hex(Lookup(config, "hardforks", "karst_time")),
            ["depositContractAddress"] = Lookup(constants, "DepositContractAddress", l1),
            ["terminalTotalDifficulty"] = "0x0"
        }),
        ["genesis"] = WithoutNulls(new JsonObject
        {
            ["seal"] = new JsonObject
            {
                ["ethereum"] = new JsonObject
                {
                    ["nonce"] = Lookup(genesis, "nonce"),
                    ["mixHash"] = Lookup(genesis, "mixHash")
                }
            },
            ["difficulty"] = Lookup(genesis, "difficulty"),
            ["author"] = (Lookup(genesis, "author") ?? Lookup(genesis, "coinbase")),
            ["timestamp"] = Lookup(genesis, "timestamp"),
            ["parentHash"] = Lookup(genesis, "parentHash"),
            ["extraData"] = Lookup(genesis, "extraData"),
            ["gasLimit"] = Lookup(genesis, "gasLimit"),
            ["baseFeePerGas"] = Lookup(genesis, "baseFeePerGas"),
            ["stateRoot"] = genesis["stateHash"]?.DeepClone()
        }),
        ["nodes"] = new JsonArray(
            JsonValue.Create("enode://d860a01f9722d78051619d1e2351aba3f43f943f6f00718d1b9baa4101932a1f5011f16bb2b1bb35db20d6fe28fa0bf09636d26a87d31de9ec6203eeedb1f666@18.138.108.67:30303"),
            JsonValue.Create("enode://22a8232c3abc76a16ae9d6c3b164f98775fe226f0917b0ca871128a74a8e9630b458460865bab457221f1d448dd9791d24c4e5d88786180ac185df813a68d4de@3.209.45.79:30303"),
            JsonValue.Create("enode://2b252ab6a1d0f971d9722cb839a42cb81db019ba44c08754628ab4a823487071b5695317c8ccd085219c3a03af063495b2f1da8d18218da2d6a82981b45e6ffc@65.108.70.101:30303"),
            JsonValue.Create("enode://4aeb4ab6c14b23e2c4cfdce879c04b0748a20d8e9b59e25ded2a08143e265c6c25936e74cbc8e641e3312ca288673d91f2f93f8e277de3cfa444ecdaaf982052@157.90.35.166:30303"),
            JsonValue.Create("enode://ac906289e4b7f12df423d654c5a962b6ebe5b3a74cc9e06292a85221f9a64a6f1cfdd6b714ed6dacef51578f92b34c60ee91e9ede9c7f8fadc4d347326d95e2b@146.190.13.128:30303"),
            JsonValue.Create("enode://a3435a0155a3e837c02f5e7f5662a2f1fbc25b48e4dc232016e1c51b544cb5b4510ef633ea3278c0e970fa8ad8141e2d4d0f9f95456c537ff05fdf9b31c15072@178.128.136.233:30303"),
            JsonValue.Create("enode://4e5e92199ee224a01932a377160aa432f31d0b351f84ab413a8e0a42f4f36476f8fb1cbe914af0d9aef0d51665c214cf653c651c4bbd9d5550a934f241f1682b@138.197.51.181:30303"),
            JsonValue.Create("enode://143e11fb766781d22d92a2e33f8f104cddae4411a122295ed1fdb6638de96a6ce65f5b7c964ba3763bba27961738fef7d3ecc739268f3e5e771fb4c87b6234ba@146.190.1.103:30303"),
            JsonValue.Create("enode://8b61dc2d06c3f96fddcbebb0efb29d60d3598650275dc469c22229d3e5620369b0d3dedafd929835fe7f489618f19f456fe7c0df572bf2d914a9f4e006f783a9@170.64.250.88:30303"),
            JsonValue.Create("enode://10d62eff032205fcef19497f35ca8477bea0eadfff6d769a147e895d8b2b8f8ae6341630c645c30f5df6e67547c03494ced3d9c5764e8622a26587b083b028e8@139.59.49.206:30303"),
            JsonValue.Create("enode://9e9492e2e8836114cc75f5b929784f4f46c324ad01daf87d956f98b3b6c5fcba95524d6e5cf9861dc96a2c8a171ea7105bb554a197455058de185fa870970c7c@138.68.123.152:30303"),
            JsonValue.Create("enode://ca2774c3c401325850b2477fd7d0f27911efbf79b1e8b335066516e2bd8c4c9e0ba9696a94b1cb030a88eac582305ff55e905e64fb77fe0edcd70a4e5296d3ec@34.65.175.185:30305"),
            JsonValue.Create("enode://dd751a9ef8912be1bfa7a5e34e2c3785cc5253110bd929f385e07ba7ac19929fb0e0c5d93f77827291f4da02b2232240fbc47ea7ce04c46e333e452f8656b667@34.65.107.0:30305"),
            JsonValue.Create("enode://c5d289b56a77b6a2342ca29956dfd07aadf45364dde8ab20d1dc4efd4d1bc6b4655d902501daea308f4d8950737a4e93a4dfedd17b49cd5760ffd127837ca965@34.65.202.239:30305"),
            JsonValue.Create("enode://87a32fd13bd596b2ffca97020e31aef4ddcc1bbd4b95bb633d16c1329f654f34049ed240a36b449fda5e5225d70fe40bc667f53c304b71f8e68fc9d448690b51@3.231.138.188:30301"),
            JsonValue.Create("enode://ca21ea8f176adb2e229ce2d700830c844af0ea941a1d8152a9513b966fe525e809c3a6c73a2c18a12b74ed6ec4380edf91662778fe0b79f6a591236e49e176f9@184.72.129.189:30301"),
            JsonValue.Create("enode://acf4507a211ba7c1e52cdf4eef62cdc3c32e7c9c47998954f7ba024026f9a6b2150cd3f0b734d9c78e507ab70d59ba61dfe5c45e1078c7ad0775fb251d7735a2@3.220.145.177:30301"),
            JsonValue.Create("enode://8a5a5006159bf079d06a04e5eceab2a1ce6e0f721875b2a9c96905336219dbe14203d38f70f3754686a6324f786c2f9852d8c0dd3adac2d080f4db35efc678c5@3.231.11.52:30301"),
            JsonValue.Create("enode://cdadbe835308ad3557f9a1de8db411da1a260a98f8421d62da90e71da66e55e98aaa8e90aa7ce01b408a54e4bd2253d701218081ded3dbe5efbbc7b41d7cef79@54.198.153.150:30301"),
            JsonValue.Create("enode://2bd2e657bb3c8efffb8ff6db9071d9eb7be70d7c6d7d980ff80fc93b2629675c5f750bc0a5ef27cd788c2e491b8795a7e9a4a6e72178c14acc6753c0e5d77ae4@34.65.205.244:30305"),
            JsonValue.Create("enode://db8e1cab24624cc62fc35dbb9e481b88a9ef0116114cd6e41034c55b5b4f18755983819252333509bd8e25f6b12aadd6465710cd2e956558faf17672cce7551f@34.65.173.88:30305"),
            JsonValue.Create("enode://bfda2e0110cfd0f4c9f7aa5bf5ec66e6bd18f71a2db028d36b8bf8b0d6fdb03125c1606a6017b31311d96a36f5ef7e1ad11604d7a166745e6075a715dfa67f8a@34.65.229.245:30305"),
            JsonValue.Create("enode://548f715f3fc388a7c917ba644a2f16270f1ede48a5d88a4d14ea287cc916068363f3092e39936f1a3e7885198bef0e5af951f1d7b1041ce8ba4010917777e71f@18.210.176.114:30301"),
            JsonValue.Create("enode://6f10052847a966a725c9f4adf6716f9141155b99a0fb487fea3f51498f4c2a2cb8d534e680ee678f9447db85b93ff7c74562762c3714783a7233ac448603b25f@107.21.251.55:30301"),
            JsonValue.Create("enode://b1a743328188dba3b2ed8c06abbb2688fabe64a3251e43bd77d4e5265bbd5cf03eca8ace4cde8ddb0c49c409b90bf941ebf556094638c6203edd6baa5ef0091b@3.134.214.169:30303"),
            JsonValue.Create("enode://ea9eaaf695facbe53090beb7a5b0411a81459bbf6e6caac151e587ee77120a1b07f3b9f3a9550f797d73d69840a643b775fd1e40344dea11e7660b6a483fe80e@52.14.30.39:30303"),
            JsonValue.Create("enode://77b6b1e72984d5d50e00ae934ffea982902226fe92fa50da42334c2750d8e405b55a5baabeb988c88125368142a64eda5096d0d4522d3b6eef75d166c7d303a9@3.148.100.173:30303"),
            JsonValue.Create("enode://9e138a8ec4291c4f2fe5851aaee44fc73ae67da87fb26b75e3b94183c7ffc15b2795afc816b0aa084151b95b3a3553f1cd0d1e9dd134dcf059a84d4e0b429afc@3.146.117.118:30303"),
            JsonValue.Create("enode://34d87d649e5c58a17a43c1d59900a2020bd82d5b12ea39467c3366bee2946aaa9c759c77ede61089624691291fb2129eeb2a47687b50e2463188c78e1f738cf2@52.15.54.8:30303"),
            JsonValue.Create("enode://c2405194166fe2c0e6c61ee469745fed1a6802f51c8fc39e1c78c21c9a6a15a7c55304f09ee37e430da9a1ce8117ca085263c6b0f474f6946811e398347611ef@3.146.213.65:30303")),
        ["accounts"] = Accounts(genesis)
    };
    if (chainName == "op" && l1 == "mainnet")
    {
        nethermind["genesis"]!["stateUnavailable"] = true;
        nethermind["params"]!["terminalTotalDifficulty"] = 210470125;
        foreach (var key in new[] { "eip2565Transition", "eip2929Transition", "eip2930Transition" }) nethermind["params"]![key] = "0x3C45B0";
    }
    return nethermind;
}

static JsonObject Runner(string chainName, string l1, JsonNode chain)
{
    var qualifiedName = $"{chainName}-{l1}";
    var runner = new JsonObject
    {
        ["$schema"] = "https://raw.githubusercontent.com/NethermindEth/core-scripts/refs/heads/main/schemas/config.json",
        ["Init"] = new JsonObject
        {
            ["ChainSpecPath"] = $"chainspec/{qualifiedName}.json.zst",
            ["GenesisHash"] = Lookup(chain, "genesis", "l2", "hash"),
            ["BaseDbPath"] = $"nethermind_db/{qualifiedName}",
            ["LogFileName"] = $"{qualifiedName}.log"
        },
        ["TxPool"] = new JsonObject
        {
            ["BlobsSupport"] = "Disabled"
        },
        ["Sync"] = new JsonObject
        {
            ["FastSync"] = true,
            ["SnapSync"] = true
        },
        ["Discovery"] = new JsonObject
        {
            ["DiscoveryVersion"] = "V5"
        },
        ["JsonRpc"] = new JsonObject
        {
            ["Enabled"] = true,
            ["Port"] = 8545,
            ["EnginePort"] = 8551
        },
        ["Pruning"] = new JsonObject
        {
            ["PruningBoundary"] = 256
        },
        ["Blocks"] = new JsonObject
        {
            ["SecondsPerSlot"] = Lookup(chain, "block_time")
        },
        ["Merge"] = new JsonObject
        {
            ["Enabled"] = true
        },
        ["Optimism"] = new JsonObject
        {
            ["SequencerUrl"] = Lookup(chain, "sequencer_rpc")
        }
    };
    if (chainName == "op" && l1 == "mainnet")
    {
        // https://github.com/NethermindEth/nethermind/pull/8105/files#r1944390018
        runner["Init"]!["GenesisHash"] = "0x7ca38a1916c42007829c55e69d3e9a73265554b586a499015373241b8a3fa48b";
        runner["Sync"]!["AncientBodiesBarrier"] = 105235063;
        runner["Sync"]!["AncientReceiptsBarrier"] = 105235063;
    }
    return runner;
}