Update the minimal template to stable2412 (#21)

This synchronizes the template to the stable2412 branch.

---------

Signed-off-by: Iulian Barbu <iulian.barbu@parity.io>
Co-authored-by: iulianbarbu <14218860+iulianbarbu@users.noreply.github.com>
Co-authored-by: Iulian Barbu <iulian.barbu@parity.io>

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
         uses: ./.github/actions/macos-dependencies
 
       - name: Build the node individually in release mode
-        run: cargo build --package minimal-template-node --release
+        run: cargo build --package minimal-template-node --release --locked --all-features --all-targets
         timeout-minutes: 90
 
       - name: Make sure the node is producing blocks

.github/workflows/release.yml

@@ -54,7 +54,7 @@ jobs:
           rustup component add rust-src
 
       - name: Build the template
-        run: cargo build --locked --release
+        run: cargo build --locked --release --all-features --all-targets
         timeout-minutes: 90
 
       - name: Upload the binaries

Cargo.toml

@@ -6,18 +6,23 @@ repository = "https://github.com/paritytech/polkadot-sdk-minimal-template.git"
 edition = "2021"
 
 [workspace]
-members = ["node", "pallets/template", "runtime"]
+default-members = ["pallets/template", "runtime"]
+members = [
+    "node",
+    "pallets/template",
+    "runtime",
+]
 resolver = "2"
 
 [workspace.dependencies]
 minimal-template-runtime = { path = "./runtime", default-features = false }
 pallet-minimal-template = { path = "./pallets/template", default-features = false }
-clap = { version = "4.5.10" }
+clap = { version = "4.5.13" }
-docify = { version = "0.2.8" }
+docify = { version = "0.2.9" }
-futures = { version = "0.3.30" }
+futures = { version = "0.3.31" }
 futures-timer = { version = "3.0.2" }
 jsonrpsee = { version = "0.24.3" }
-polkadot-sdk = { version = "0.7.0", default-features = false }
+polkadot-sdk = { version = "0.12.0", default-features = false }
-serde_json = { version = "1.0.127", default-features = false }
+serde_json = { version = "1.0.132", default-features = false }
 codec = { version = "3.6.12", default-features = false, package = "parity-scale-codec" }
 scale-info = { version = "2.11.1", default-features = false }

Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /polkadot
 COPY . /polkadot
 
 RUN cargo fetch
-RUN cargo build --locked --release
+RUN cargo build --workspace --locked --release
 
 FROM docker.io/parity/base-bin:latest
 

README.md

@@ -11,91 +11,209 @@
 
 </div>
 
-* 🤏 This template is a minimal (in terms of complexity and the number of components)
+## Table of Contents
+
+- [Intro](#intro)
+
+- [Template Structure](#template-structure)
+
+- [Getting Started](#getting-started)
+
+- [Starting a Minimal Template Chain](#starting-a-minimal-template-chain)
+
+  - [Omni Node](#omni-node)
+  - [Minimal Template Node](#minimal-template-node)
+  - [Zombienet with Omni Node](#zombienet-with-omni-node)
+  - [Zombienet with Minimal Template Node](#zombienet-with-minimal-template-node)
+  - [Connect with the Polkadot-JS Apps Front-End](#connect-with-the-polkadot-js-apps-front-end)
+  - [Takeaways](#takeaways)
+
+- [Contributing](#contributing)
+
+- [Getting Help](#getting-help)
+
+## Intro
+
+- 🤏 This template is a minimal (in terms of complexity and the number of components)
 template for building a blockchain node.
 
-* 🔧 Its runtime is configured with a single custom pallet as a starting point, and a handful of ready-made pallets
+- 🔧 Its runtime is configured with a single custom pallet as a starting point, and a handful of ready-made pallets
 such as a [Balances pallet](https://paritytech.github.io/polkadot-sdk/master/pallet_balances/index.html).
 
-* 👤 The template has no consensus configured - it is best for experimenting with a single node network.
+- 👤 The template has no consensus configured - it is best for experimenting with a single node network.
 
 ## Template Structure
 
 A Polkadot SDK based project such as this one consists of:
 
-* 💿 a [Node](./node/README.md) - the binary application.
+- 🧮 the [Runtime](./runtime/README.md) - the core logic of the blockchain.
-* 🧮 the [Runtime](./runtime/README.md) - the core logic of the blockchain.
+- 🎨 the [Pallets](./pallets/README.md) - from which the runtime is constructed.
-* 🎨 the [Pallets](./pallets/README.md) - from which the runtime is constructed.
+- 💿 a [Node](./node/README.md) - the binary application (which is not part of the cargo default-members list and is not
+compiled unless building the entire workspace).
 
 ## Getting Started
 
-* 🦀 The template is using the Rust language.
+- 🦀 The template is using the Rust language.
 
-* 👉 Check the
+- 👉 Check the
 [Rust installation instructions](https://www.rust-lang.org/tools/install) for your system.
 
-* 🛠️ Depending on your operating system and Rust version, there might be additional
+- 🛠️ Depending on your operating system and Rust version, there might be additional
 packages required to compile this template - please take note of the Rust compiler output.
 
-### Build
+Fetch minimal template code:
-
-🔨 Use the following command to build the node without launching it:
 
 ```sh
-cargo build --release
+git clone https://github.com/paritytech/polkadot-sdk-minimal-template.git minimal-template
+
+cd minimal-template
 ```
 
-🐳 Alternatively, build the docker image:
+## Starting a Minimal Template Chain
+
+### Omni Node
+
+[Omni Node](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/reference_docs/omni_node/index.html) can
+be used to run the minimal template's runtime. `polkadot-omni-node` binary crate usage is described at a high-level
+[on crates.io](https://crates.io/crates/polkadot-omni-node).
+
+#### Install `polkadot-omni-node`
+
+Please see installation section on [crates.io/omni-node](https://crates.io/crates/polkadot-omni-node).
+
+#### Build `minimal-template-runtime`
+
+```sh
+cargo build -p minimal-template-runtime --release
+```
+
+#### Install `staging-chain-spec-builder`
+
+Please see the installation section at [`crates.io/staging-chain-spec-builder`](https://crates.io/crates/staging-chain-spec-builder).
+
+#### Use chain-spec-builder to generate the chain_spec.json file
+
+```sh
+chain-spec-builder create --relay-chain "dev" --para-id 1000 --runtime \
+    target/release/wbuild/minimal-template-runtime/minimal_template_runtime.wasm named-preset development
+```
+
+**Note**: the `relay-chain` and `para-id` flags are extra bits of information required to
+configure the node for the case of representing a parachain that is connected to a relay chain.
+They are not relevant to minimal template business logic, but they are mandatory information for
+Omni Node, nonetheless.
+
+#### Run Omni Node
+
+Start Omni Node in development mode (sets up block production and finalization based on manual seal,
+sealing a new block every 3 seconds), with a minimal template runtime chain spec.
+
+```sh
+polkadot-omni-node --chain <path/to/chain_spec.json> --dev
+```
+
+### Minimal Template Node
+
+#### Build both node & runtime
+
+```sh
+cargo build --workspace --release
+```
+
+🐳 Alternatively, build the docker image which builds all the workspace members,
+and has as entry point the node binary:
 
 ```sh
 docker build . -t polkadot-sdk-minimal-template
 ```
 
-### Single-Node Development Chain
+#### Start the `minimal-template-node`
 
-👤 The following command starts a single-node development chain:
+The `minimal-template-node` has dependency on the `minimal-template-runtime`. It will use
+the `minimal_template_runtime::WASM_BINARY` constant (which holds the WASM blob as a byte
+array) for chain spec building, while starting. This is in contrast to Omni Node which doesn't
+depend on a specific runtime, but asks for the chain spec at startup.
 
 ```sh
-./target/release/minimal-template-node --dev
+<target/release/path/to/minimal-template-node> --tmp --consensus manual-seal-3000
-
+# or via docker
-# docker version:
+docker run --rm polkadot-sdk-minimal-template
-docker run --rm polkadot-sdk-minimal-template --dev
 ```
 
-Development chains:
+### Zombienet with Omni Node
 
-* 🧹 Do not persist the state.
+#### Install `zombienet`
-* 💰 Are pre-configured with a genesis state that includes several pre-funded development accounts.
+
-* 🧑‍⚖️ One development account (`ALICE`) is used as `sudo` accounts.
+We can install `zombienet` as described [here](https://paritytech.github.io/zombienet/install.html#installation),
+and `zombienet-omni-node.toml` contains the network specification we want to start.
+
+#### Update `zombienet-omni-node.toml` with a valid chain spec path
+
+Before starting the network with zombienet we must update the network specification
+with a valid chain spec path. If we need to generate one, we can look up at the previous
+section for chain spec creation [here](#use-chain-spec-builder-to-generate-the-chain_specjson-file).
+
+Then make the changes in the network specification like so:
+
+```toml
+# ...
+chain = "dev"
+chain_spec_path = "<TO BE UPDATED WITH A VALID PATH>"
+default_args = ["--dev"]
+# ..
+```
+
+#### Start the network
+
+```sh
+zombienet --provider native spawn zombienet-omni-node.toml
+```
+
+### Zombienet with `minimal-template-node`
+
+For this one we just need to have `zombienet` installed and run:
+
+```sh
+zombienet --provider native spawn zombienet-multi-node.toml
+```
 
 ### Connect with the Polkadot-JS Apps Front-End
 
-* 🌐 You can interact with your local node using the
+- 🌐 You can interact with your local node using the
 hosted version of the [Polkadot/Substrate
 Portal](https://polkadot.js.org/apps/#/explorer?rpc=ws://localhost:9944).
 
-* 🪐 A hosted version is also
+- 🪐 A hosted version is also
 available on [IPFS](https://dotapps.io/).
 
-* 🧑‍🔧 You can also find the source code and instructions for hosting your own instance in the
+- 🧑‍🔧 You can also find the source code and instructions for hosting your own instance in the
 [`polkadot-js/apps`](https://github.com/polkadot-js/apps) repository.
 
+### Takeaways
+
+Previously minimal template's development chains:
+
+- ❌ Started in a multi-node setup will produce forks because minimal lacks consensus.
+- 🧹 Do not persist the state.
+- 💰 Are pre-configured with a genesis state that includes several pre-funded development accounts.
+- 🧑‍⚖️ One development account (`ALICE`) is used as `sudo` accounts.
+
 ## Contributing
 
-* 🔄 This template is automatically updated after releases in the main [Polkadot SDK monorepo](https://github.com/paritytech/polkadot-sdk).
+- 🔄 This template is automatically updated after releases in the main [Polkadot SDK monorepo](https://github.com/paritytech/polkadot-sdk).
 
-* ➡️ Any pull requests should be directed to this [source](https://github.com/paritytech/polkadot-sdk/tree/master/templates/minimal).
+- ➡️ Any pull requests should be directed to this [source](https://github.com/paritytech/polkadot-sdk/tree/master/templates/minimal).
 
-* 😇 Please refer to the monorepo's
+- 😇 Please refer to the monorepo's
 [contribution guidelines](https://github.com/paritytech/polkadot-sdk/blob/master/docs/contributor/CONTRIBUTING.md) and
 [Code of Conduct](https://github.com/paritytech/polkadot-sdk/blob/master/docs/contributor/CODE_OF_CONDUCT.md).
 
 ## Getting Help
 
-* 🧑‍🏫 To learn about Polkadot in general, [Polkadot.network](https://polkadot.network/) website is a good starting point.
+- 🧑‍🏫 To learn about Polkadot in general, [Polkadot.network](https://polkadot.network/) website is a good starting point.
 
-* 🧑‍🔧 For technical introduction, [here](https://github.com/paritytech/polkadot-sdk#-documentation) are
+- 🧑‍🔧 For technical introduction, [here](https://github.com/paritytech/polkadot-sdk#-documentation) are
 the Polkadot SDK documentation resources.
 
-* 👥 Additionally, there are [GitHub issues](https://github.com/paritytech/polkadot-sdk/issues) and
+- 👥 Additionally, there are [GitHub issues](https://github.com/paritytech/polkadot-sdk/issues) and
 [Substrate StackExchange](https://substrate.stackexchange.com/).

node/README.md

@@ -20,4 +20,4 @@ It's a place to configure consensus-related topics. In favor of minimalism, this
 
 ## Release
 
-Polkadot SDK stable2409
+Polkadot SDK Stable 2412

node/src/chain_spec.rs

@@ -15,13 +15,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use minimal_template_runtime::{BalancesConfig, SudoConfig, WASM_BINARY};
+use minimal_template_runtime::WASM_BINARY;
 use polkadot_sdk::{
 	sc_service::{ChainType, Properties},
-	sp_keyring::AccountKeyring,
 	*,
 };
-use serde_json::{json, Value};
 
 /// This is a specialization of the general Substrate ChainSpec type.
 pub type ChainSpec = sc_service::GenericChainSpec;
@@ -33,26 +31,12 @@ fn props() -> Properties {
 	properties
 }
 
-pub fn development_config() -> Result<ChainSpec, String> {
+pub fn development_chain_spec() -> Result<ChainSpec, String> {
 	Ok(ChainSpec::builder(WASM_BINARY.expect("Development wasm not available"), Default::default())
 		.with_name("Development")
 		.with_id("dev")
 		.with_chain_type(ChainType::Development)
-		.with_genesis_config_patch(testnet_genesis())
+		.with_genesis_config_preset_name(sp_genesis_builder::DEV_RUNTIME_PRESET)
 		.with_properties(props())
 		.build())
 }
-
-/// Configure initial storage state for FRAME pallets.
-fn testnet_genesis() -> Value {
-	use minimal_template_runtime::interface::{Balance, MinimumBalance};
-	use polkadot_sdk::polkadot_sdk_frame::traits::Get;
-	let endowment = <MinimumBalance as Get<Balance>>::get().max(1) * 1000;
-	let balances = AccountKeyring::iter()
-		.map(|a| (a.to_account_id(), endowment))
-		.collect::<Vec<_>>();
-	json!({
-		"balances": BalancesConfig { balances },
-		"sudo": SudoConfig { key: Some(AccountKeyring::Alice.to_account_id()) },
-	})
-}

node/src/cli.rs

@@ -21,6 +21,7 @@ use polkadot_sdk::{sc_cli::RunCmd, *};
 pub enum Consensus {
 	ManualSeal(u64),
 	InstantSeal,
+	None,
 }
 
 impl std::str::FromStr for Consensus {
@@ -31,6 +32,8 @@ impl std::str::FromStr for Consensus {
 			Consensus::InstantSeal
 		} else if let Some(block_time) = s.strip_prefix("manual-seal-") {
 			Consensus::ManualSeal(block_time.parse().map_err(|_| "invalid block time")?)
+		} else if s.to_lowercase() == "none" {
+			Consensus::None
 		} else {
 			return Err("incorrect consensus identifier".into());
 		})

node/src/command.rs

@@ -49,7 +49,7 @@ impl SubstrateCli for Cli {
 
 	fn load_spec(&self, id: &str) -> Result<Box<dyn sc_service::ChainSpec>, String> {
 		Ok(match id {
-			"dev" => Box::new(chain_spec::development_config()?),
+			"dev" => Box::new(chain_spec::development_chain_spec()?),
 			path =>
 				Box::new(chain_spec::ChainSpec::from_json_file(std::path::PathBuf::from(path))?),
 		})

node/src/service.rs

@@ -15,6 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use crate::cli::Consensus;
 use futures::FutureExt;
 use minimal_template_runtime::{interface::OpaqueBlock as Block, RuntimeApi};
 use polkadot_sdk::{
@@ -28,8 +29,6 @@ use polkadot_sdk::{
 };
 use std::sync::Arc;
 
-use crate::cli::Consensus;
-
 type HostFunctions = sp_io::SubstrateHostFunctions;
 
 #[docify::export]
@@ -45,7 +44,7 @@ pub type Service = sc_service::PartialComponents<
 	FullBackend,
 	FullSelectChain,
 	sc_consensus::DefaultImportQueue<Block>,
-	sc_transaction_pool::FullPool<Block, FullClient>,
+	sc_transaction_pool::TransactionPoolHandle<Block, FullClient>,
 	Option<Telemetry>,
 >;
 
@@ -78,12 +77,15 @@ pub fn new_partial(config: &Configuration) -> Result<Service, ServiceError> {
 
 	let select_chain = sc_consensus::LongestChain::new(backend.clone());
 
-	let transaction_pool = sc_transaction_pool::BasicPool::new_full(
+	let transaction_pool = Arc::from(
-		config.transaction_pool.clone(),
+		sc_transaction_pool::Builder::new(
-		config.role.is_authority().into(),
+			task_manager.spawn_essential_handle(),
-		config.prometheus_registry(),
+			client.clone(),
-		task_manager.spawn_essential_handle(),
+			config.role.is_authority().into(),
-		client.clone(),
+		)
+		.with_options(config.transaction_pool.clone())
+		.with_prometheus(config.prometheus_registry())
+		.build(),
 	);
 
 	let import_queue = sc_consensus_manual_seal::import_queue(
@@ -135,11 +137,11 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 	let (network, system_rpc_tx, tx_handler_controller, network_starter, sync_service) =
 		sc_service::build_network(sc_service::BuildNetworkParams {
 			config: &config,
+			net_config,
 			client: client.clone(),
 			transaction_pool: transaction_pool.clone(),
 			spawn_handle: task_manager.spawn_handle(),
 			import_queue,
-			net_config,
 			block_announce_validator_builder: None,
 			warp_sync_config: None,
 			block_relay: None,
@@ -147,9 +149,7 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 		})?;
 
 	if config.offchain_worker.enabled {
-		task_manager.spawn_handle().spawn(
+		let offchain_workers =
-			"offchain-workers-runner",
-			"offchain-worker",
 			sc_offchain::OffchainWorkers::new(sc_offchain::OffchainWorkerOptions {
 				runtime_api_provider: client.clone(),
 				is_validator: config.role.is_authority(),
@@ -161,9 +161,11 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 				network_provider: Arc::new(network.clone()),
 				enable_http_requests: true,
 				custom_extensions: |_| vec![],
-			})
+			})?;
-			.run(client.clone(), task_manager.spawn_handle())
+		task_manager.spawn_handle().spawn(
-			.boxed(),
+			"offchain-workers-runner",
+			"offchain-worker",
+			offchain_workers.run(client.clone(), task_manager.spawn_handle()).boxed(),
 		);
 	}
 
@@ -259,6 +261,7 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 				authorship_future,
 			);
 		},
+		_ => {},
 	}
 
 	network_starter.start_network();

pallets/template/README.md

@@ -2,4 +2,4 @@
 
 ## Release
 
-Polkadot SDK stable2409
+Polkadot SDK Stable 2412

pallets/template/src/lib.rs

@@ -5,6 +5,7 @@
 
 #![cfg_attr(not(feature = "std"), no_std)]
 
+use frame::prelude::*;
 use polkadot_sdk::polkadot_sdk_frame as frame;
 
 // Re-export all pallet parts, this is needed to properly import the pallet into the runtime.
@@ -19,4 +20,7 @@ pub mod pallet {
 
 	#[pallet::pallet]
 	pub struct Pallet<T>(_);
+
+	#[pallet::storage]
+	pub type Value<T> = StorageValue<Value = u32>;
 }

runtime/Cargo.toml

@@ -12,7 +12,8 @@ publish = false
 [dependencies]
 codec = { workspace = true }
 scale-info = { workspace = true }
-polkadot-sdk = { workspace = true, features = ["experimental", "pallet-balances", "pallet-sudo", "pallet-timestamp", "pallet-transaction-payment", "pallet-transaction-payment-rpc-runtime-api", "runtime"] }
+polkadot-sdk = { workspace = true, features = ["pallet-balances", "pallet-sudo", "pallet-timestamp", "pallet-transaction-payment", "pallet-transaction-payment-rpc-runtime-api", "runtime"] }
+serde_json = { workspace = true, default-features = false, features = ["alloc"] }
 pallet-minimal-template.workspace = true
 
 [build-dependencies]
@@ -25,4 +26,5 @@ std = [
 	"pallet-minimal-template/std",
 	"polkadot-sdk/std",
 	"scale-info/std",
+	"serde_json/std",
 ]

runtime/README.md

@@ -12,4 +12,4 @@ responsible for validating blocks and executing the state changes they define.
 
 ## Release
 
-Polkadot SDK stable2409
+Polkadot SDK Stable 2412

runtime/src/lib.rs

@@ -25,28 +25,75 @@ include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 extern crate alloc;
 
-use alloc::{vec, vec::Vec};
+use alloc::vec::Vec;
 use pallet_transaction_payment::{FeeDetails, RuntimeDispatchInfo};
 use polkadot_sdk::{
 	polkadot_sdk_frame::{
 		self as frame,
-		prelude::*,
+		deps::sp_genesis_builder,
 		runtime::{apis, prelude::*},
 	},
 	*,
 };
 
+/// Provides getters for genesis configuration presets.
+pub mod genesis_config_presets {
+	use super::*;
+	use crate::{
+		interface::{Balance, MinimumBalance},
+		sp_keyring::AccountKeyring,
+		BalancesConfig, RuntimeGenesisConfig, SudoConfig,
+	};
+
+	use alloc::{vec, vec::Vec};
+	use serde_json::Value;
+
+	/// Returns a development genesis config preset.
+	pub fn development_config_genesis() -> Value {
+		let endowment = <MinimumBalance as Get<Balance>>::get().max(1) * 1000;
+		let config = RuntimeGenesisConfig {
+			balances: BalancesConfig {
+				balances: AccountKeyring::iter()
+					.map(|a| (a.to_account_id(), endowment))
+					.collect::<Vec<_>>(),
+			},
+			sudo: SudoConfig { key: Some(AccountKeyring::Alice.to_account_id()) },
+			..Default::default()
+		};
+
+		serde_json::to_value(config).expect("Could not build genesis config.")
+	}
+
+	/// Get the set of the available genesis config presets.
+	pub fn get_preset(id: &PresetId) -> Option<Vec<u8>> {
+		let patch = match id.as_ref() {
+			sp_genesis_builder::DEV_RUNTIME_PRESET => development_config_genesis(),
+			_ => return None,
+		};
+		Some(
+			serde_json::to_string(&patch)
+				.expect("serialization to json is expected to work. qed.")
+				.into_bytes(),
+		)
+	}
+
+	/// List of supported presets.
+	pub fn preset_names() -> Vec<PresetId> {
+		vec![PresetId::from(sp_genesis_builder::DEV_RUNTIME_PRESET)]
+	}
+}
+
 /// The runtime version.
 #[runtime_version]
 pub const VERSION: RuntimeVersion = RuntimeVersion {
-	spec_name: create_runtime_str!("minimal-template-runtime"),
+	spec_name: alloc::borrow::Cow::Borrowed("minimal-template-runtime"),
-	impl_name: create_runtime_str!("minimal-template-runtime"),
+	impl_name: alloc::borrow::Cow::Borrowed("minimal-template-runtime"),
 	authoring_version: 1,
 	spec_version: 0,
 	impl_version: 1,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 1,
-	state_version: 1,
+	system_version: 1,
 };
 
 /// The version information used to identify this runtime when compiled natively.
@@ -55,8 +102,8 @@ pub fn native_version() -> NativeVersion {
 	NativeVersion { runtime_version: VERSION, can_author_with: Default::default() }
 }
 
-/// The signed extensions that are added to the runtime.
+/// The transaction extensions that are added to the runtime.
-type SignedExtra = (
+type TxExtension = (
 	// Checks that the sender is not the zero address.
 	frame_system::CheckNonZeroSender<Runtime>,
 	// Checks that the runtime version is correct.
@@ -159,7 +206,7 @@ impl pallet_transaction_payment::Config for Runtime {
 // Implements the types required for the template pallet.
 impl pallet_minimal_template::Config for Runtime {}
 
-type Block = frame::runtime::types_common::BlockOf<Runtime, SignedExtra>;
+type Block = frame::runtime::types_common::BlockOf<Runtime, TxExtension>;
 type Header = HeaderFor<Runtime>;
 
 type RuntimeExecutive =
@@ -266,17 +313,17 @@ impl_runtime_apis! {
 		}
 	}
 
-	impl sp_genesis_builder::GenesisBuilder<Block> for Runtime {
+	impl apis::GenesisBuilder<Block> for Runtime {
 		fn build_state(config: Vec<u8>) -> sp_genesis_builder::Result {
 			build_state::<RuntimeGenesisConfig>(config)
 		}
 
-		fn get_preset(id: &Option<sp_genesis_builder::PresetId>) -> Option<Vec<u8>> {
+		fn get_preset(id: &Option<PresetId>) -> Option<Vec<u8>> {
-			get_preset::<RuntimeGenesisConfig>(id, |_| None)
+			get_preset::<RuntimeGenesisConfig>(id, self::genesis_config_presets::get_preset)
 		}
 
-		fn preset_names() -> Vec<sp_genesis_builder::PresetId> {
+		fn preset_names() -> Vec<PresetId> {
-			vec![]
+			self::genesis_config_presets::preset_names()
 		}
 	}
 }

zombienet-omni-node.toml

@@ -0,0 +1,9 @@
+[relaychain]
+default_command = "polkadot-omni-node"
+chain = "dev"
+chain_spec_path = "<path/to/chain_spec.json>"
+default_args = ["--dev"]
+
+[[relaychain.nodes]]
+name = "alice"
+ws_port = 9944

zombienet.toml

@@ -0,0 +1,30 @@
+# The setup bellow allows only one node to produce
+# blocks and the rest will follow.
+
+[relaychain]
+chain = "dev"
+default_command = "minimal-template-node"
+
+[[relaychain.nodes]]
+name = "alice"
+args = ["--consensus manual-seal-3000"]
+validator = true
+ws_port = 9944
+
+[[relaychain.nodes]]
+name = "bob"
+args = ["--consensus None"]
+validator = true
+ws_port = 9955
+
+[[relaychain.nodes]]
+name = "charlie"
+args = ["--consensus None"]
+validator = true
+ws_port = 9966
+
+[[relaychain.nodes]]
+name = "dave"
+args = ["--consensus None"]
+validator = true
+ws_port = 9977