Move develop to patch-polkadot-sdk (#678)

* Update `build-dependencies` CI action

* Update `develop` to `patch-polkadot-sdk`

Allows us to finally remove the old `serai-dex/substrate` repository _and_
should have CI pass without issue on `develop` again.

The changes made here should be trivial and maintain all prior
behavior/functionality. The most notable are to `chain_spec.rs`, in order to
still use a SCALE-encoded `GenesisConfig` (avoiding `serde_json`).

* CI fixes

* Add `/usr/local/opt/llvm/lib` to paths on macOS hosts

* Attempt to use `LD_LIBRARY_PATH` in macOS GitHub CI

* Use `libp2p 0.56` in `serai-node`

* Correct Windows build dependencies

* Correct `llvm/lib` path on macOS

* Correct how macOS 13 and 14 have different homebrew paths

* Use `sw_vers` instead of `uname` on macOS

Yields the macOS version instead of the kernel's version.

* Replace hard-coded path with the intended env variable to fix macOS 13

* Add `libclang-dev` as dependency to the Debian Dockerfile

* Set the `CODE` storage slot

* Update to a version of substrate without `wasmtimer`

Turns out `wasmtimer` is WASM only. This should restore the node's functioning
on non-WASM environments.

* Restore `clang` as a dependency due to the Debian Dockerfile as we require a C++ compiler

* Move from Debian bookworm to trixie

* Restore `chain_getBlockBin` to the RPC

* Always generate a new key for the P2P network

* Mention every account on-chain before they publish a transaction

`CheckNonce` required accounts have a provider in order to even have their
nonce considered. This shims that by claiming every account has a provider at
the start of a block, if it signs a transaction.

The actual execution could presumably diverge between block building (which
sets the provider before each transaction) and execution (which sets the
providers at the start of the block). It doesn't diverge in our current
configuration and it won't be propagated to `next` (which doesn't use
`CheckNonce`).

Also uses explicit indexes for the `serai_abi::{Call, Event}` `enum`s.

* Adopt `patch-polkadot-sdk` with fixed peering

* Manually insert the authority discovery key into the keystore

I did try pulling in `pallet-authority-discovery` for this, updating
`SessionKeys`, but that was insufficient for whatever reason.

* Update to latest `substrate-wasm-builder`

* Fix timeline for incrementing providers

e1671dd71b incremented the providers for every
single transaction's sender before execution, noting the solution was fragile
but it worked for us at this time. It did not work for us at this time.

The new solution replaces `inc_providers` with direct access to the `Account`
`StorageMap` to increment the providers, achieving the desired goal, _without_
emitting an event (which is ordered, and the disparate order between building
and execution was causing mismatches of the state root).

This solution is also fragile and may also be insufficient. None of this code
exists anymore on `next` however. It just has to work sufficiently for now.

* clippy

substrate/abi/Cargo.toml

@@ -17,18 +17,18 @@ workspace = true
 
 [dependencies]
 scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
-scale-info = { version = "2", default-features = false, features = ["derive"] }
 
 borsh = { version = "1", default-features = false, features = ["derive", "de_strict_order"], optional = true }
 serde = { version = "1", default-features = false, features = ["derive", "alloc"], optional = true }
 
-sp-core = { git = "https://github.com/serai-dex/substrate", default-features = false }
-sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false }
+sp-core = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
+sp-runtime = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
 
-sp-consensus-babe = { git = "https://github.com/serai-dex/substrate", default-features = false }
-sp-consensus-grandpa = { git = "https://github.com/serai-dex/substrate", default-features = false }
+sp-consensus-babe = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
+sp-consensus-grandpa = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
 
-frame-support = { git = "https://github.com/serai-dex/substrate", default-features = false }
+frame-system = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
+frame-support = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "da19e1f8ca7a9e2cbf39fbfa493918eeeb45e10b", default-features = false }
 
 serai-primitives = { path = "../primitives", version = "0.1", default-features = false }
 serai-coins-primitives = { path = "../coins/primitives", version = "0.1", default-features = false }
@@ -41,7 +41,6 @@ serai-signals-primitives = { path = "../signals/primitives", version = "0.1", de
 [features]
 std = [
   "scale/std",
-  "scale-info/std",
 
   "borsh?/std",
   "serde?/std",
@@ -52,6 +51,7 @@ std = [
   "sp-consensus-babe/std",
   "sp-consensus-grandpa/std",
 
+  "frame-system/std",
   "frame-support/std",
 
   "serai-primitives/std",

substrate/abi/src/babe.rs

@@ -2,7 +2,9 @@ use sp_consensus_babe::EquivocationProof;
 
 use serai_primitives::{Header, SeraiAddress};
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub struct ReportEquivocation {
   pub equivocation_proof: alloc::boxed::Box<EquivocationProof<Header>>,
   pub key_owner_proof: SeraiAddress,
@@ -10,7 +12,9 @@ pub struct ReportEquivocation {
 
 // We could define a Babe Config here and use the literal pallet_babe::Call
 // The disadvantage to this would be the complexity and presence of junk fields such as `__Ignore`
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum Call {
   report_equivocation(ReportEquivocation),
   report_equivocation_unsigned(ReportEquivocation),

substrate/abi/src/coins.rs

@@ -3,7 +3,9 @@ use serai_primitives::{Balance, SeraiAddress};
 pub use serai_coins_primitives as primitives;
 use primitives::OutInstructionWithBalance;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
@@ -13,7 +15,9 @@ pub enum Call {
   burn_with_instruction { instruction: OutInstructionWithBalance },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]

substrate/abi/src/dex.rs

@@ -5,7 +5,9 @@ use serai_primitives::*;
 type PoolId = ExternalCoin;
 type MaxSwapPathLength = sp_core::ConstU32<3>;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub enum Call {
@@ -38,7 +40,9 @@ pub enum Call {
   },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub enum Event {

substrate/abi/src/economic_security.rs

@@ -1,6 +1,8 @@
 use serai_primitives::ExternalNetworkId;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Event {

substrate/abi/src/genesis_liquidity.rs

@@ -3,14 +3,18 @@ pub use serai_genesis_liquidity_primitives as primitives;
 use serai_primitives::*;
 use primitives::*;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Call {
   remove_coin_liquidity { balance: ExternalBalance },
   oraclize_values { values: Values, signature: Signature },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Event {

substrate/abi/src/grandpa.rs

@@ -2,19 +2,25 @@ use sp_consensus_grandpa::EquivocationProof;
 
 use serai_primitives::{BlockNumber, SeraiAddress};
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub struct ReportEquivocation {
   pub equivocation_proof: alloc::boxed::Box<EquivocationProof<[u8; 32], BlockNumber>>,
   pub key_owner_proof: SeraiAddress,
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum Call {
   report_equivocation(ReportEquivocation),
   report_equivocation_unsigned(ReportEquivocation),
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub enum Event {

substrate/abi/src/in_instructions.rs

@@ -3,7 +3,9 @@ use serai_primitives::*;
 pub use serai_in_instructions_primitives as primitives;
 use primitives::SignedBatch;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
@@ -11,7 +13,9 @@ pub enum Call {
   execute_batch { batch: SignedBatch },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]

substrate/abi/src/lib.rs

@@ -2,6 +2,7 @@
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(non_camel_case_types)]
+#![expect(clippy::cast_possible_truncation)]
 
 extern crate alloc;
 
@@ -31,45 +32,71 @@ pub mod grandpa;
 
 pub mod tx;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum Call {
+  #[codec(index = 1)]
   Timestamp(timestamp::Call),
+  #[codec(index = 3)]
   Coins(coins::Call),
+  #[codec(index = 4)]
   LiquidityTokens(liquidity_tokens::Call),
+  #[codec(index = 5)]
   Dex(dex::Call),
+  #[codec(index = 6)]
   ValidatorSets(validator_sets::Call),
+  #[codec(index = 7)]
   GenesisLiquidity(genesis_liquidity::Call),
+  #[codec(index = 10)]
   InInstructions(in_instructions::Call),
+  #[codec(index = 11)]
   Signals(signals::Call),
+  #[codec(index = 12)]
   Babe(babe::Call),
+  #[codec(index = 13)]
   Grandpa(grandpa::Call),
 }
 
 // TODO: Remove this
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum TransactionPaymentEvent {
   TransactionFeePaid { who: serai_primitives::SeraiAddress, actual_fee: u64, tip: u64 },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum Event {
+  #[codec(index = 0)]
   System(system::Event),
-  Timestamp,
+  #[codec(index = 2)]
   TransactionPayment(TransactionPaymentEvent),
+  #[codec(index = 3)]
   Coins(coins::Event),
+  #[codec(index = 4)]
   LiquidityTokens(liquidity_tokens::Event),
+  #[codec(index = 5)]
   Dex(dex::Event),
+  #[codec(index = 6)]
   ValidatorSets(validator_sets::Event),
+  #[codec(index = 7)]
   GenesisLiquidity(genesis_liquidity::Event),
-  Emissions,
+  #[codec(index = 9)]
   EconomicSecurity(economic_security::Event),
+  #[codec(index = 10)]
   InInstructions(in_instructions::Event),
+  #[codec(index = 11)]
   Signals(signals::Event),
-  Babe,
+  #[codec(index = 13)]
   Grandpa(grandpa::Event),
 }
 
-#[derive(Clone, Copy, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, Copy, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub struct Extra {
@@ -80,7 +107,9 @@ pub struct Extra {
   pub tip: u64,
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]

substrate/abi/src/liquidity_tokens.rs

@@ -1,6 +1,8 @@
 use serai_primitives::{Balance, SeraiAddress};
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Call {
@@ -8,7 +10,9 @@ pub enum Call {
   transfer { to: SeraiAddress, balance: Balance },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub enum Event {

substrate/abi/src/signals.rs

@@ -5,7 +5,9 @@ use serai_validator_sets_primitives::ValidatorSet;
 pub use serai_signals_primitives as primitives;
 use primitives::SignalId;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
@@ -17,7 +19,9 @@ pub enum Call {
   stand_against { signal_id: SignalId, for_network: NetworkId },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]

substrate/abi/src/system.rs

@@ -1,13 +1,15 @@
-use frame_support::dispatch::{DispatchInfo, DispatchError};
+use frame_system::DispatchEventInfo;
+use frame_support::sp_runtime::DispatchError;
 
 use serai_primitives::SeraiAddress;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 pub enum Event {
-  ExtrinsicSuccess { dispatch_info: DispatchInfo },
-  ExtrinsicFailed { dispatch_error: DispatchError, dispatch_info: DispatchInfo },
+  ExtrinsicSuccess { dispatch_info: DispatchEventInfo },
+  ExtrinsicFailed { dispatch_error: DispatchError, dispatch_info: DispatchEventInfo },
   CodeUpdated,
   NewAccount { account: SeraiAddress },
   KilledAccount { account: SeraiAddress },
-  Remarked { sender: SeraiAddress, hash: [u8; 32] },
 }

substrate/abi/src/timestamp.rs

@@ -1,4 +1,6 @@
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub enum Call {

substrate/abi/src/tx.rs

@@ -1,3 +1,5 @@
+#![allow(deprecated)]
+
 use scale::Encode;
 
 use sp_core::sr25519::{Public, Signature};
@@ -8,18 +10,11 @@ use serai_primitives::SeraiAddress;
 use frame_support::dispatch::GetDispatchInfo;
 
 pub trait TransactionMember:
-  Clone + PartialEq + Eq + core::fmt::Debug + scale::Encode + scale::Decode + scale_info::TypeInfo
+  Clone + PartialEq + Eq + core::fmt::Debug + scale::Encode + scale::Decode
 {
 }
-impl<
-    T: Clone
-      + PartialEq
-      + Eq
-      + core::fmt::Debug
-      + scale::Encode
-      + scale::Decode
-      + scale_info::TypeInfo,
-  > TransactionMember for T
+impl<T: Clone + PartialEq + Eq + core::fmt::Debug + scale::Encode + scale::Decode> TransactionMember
+  for T
 {
 }
 
@@ -29,8 +24,8 @@ type TransactionDecodeAs<Extra> = (crate::Call, Option<(SeraiAddress, Signature,
 
 // We use our own Transaction struct, over UncheckedExtrinsic, for more control, a bit more
 // simplicity, and in order to be immune to https://github.com/paritytech/polkadot-sdk/issues/2947
-#[allow(private_bounds)]
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[allow(clippy::multiple_bound_locations)]
+#[derive(Clone, PartialEq, Eq, Debug, scale::DecodeWithMemTracking)]
 pub struct Transaction<
   Call: 'static + TransactionMember + From<crate::Call>,
   Extra: 'static + TransactionMember,
@@ -50,6 +45,10 @@ impl<Call: 'static + TransactionMember + From<crate::Call>, Extra: 'static + Tra
   pub fn call(&self) -> &crate::Call {
     &self.call
   }
+
+  pub fn signer(&self) -> Option<SeraiAddress> {
+    self.signature.as_ref().map(|(address, _sig, _extra)| *address)
+  }
 }
 
 impl<Call: 'static + TransactionMember + From<crate::Call>, Extra: 'static + TransactionMember>
@@ -69,16 +68,6 @@ impl<Call: 'static + TransactionMember + From<crate::Call>, Extra: 'static + Tra
     Ok(Self { call, mapped_call, signature })
   }
 }
-impl<Call: 'static + TransactionMember + From<crate::Call>, Extra: 'static + TransactionMember>
-  scale_info::TypeInfo for Transaction<Call, Extra>
-{
-  type Identity = TransactionDecodeAs<Extra>;
-
-  // Define the type info as the info of the type equivalent to what we encode as
-  fn type_info() -> scale_info::Type {
-    TransactionDecodeAs::<Extra>::type_info()
-  }
-}
 
 #[cfg(feature = "serde")]
 mod _serde {
@@ -129,23 +118,14 @@ impl<
 impl<
     Call: 'static + TransactionMember + From<crate::Call> + TryInto<crate::Call>,
     Extra: 'static + TransactionMember,
-  > frame_support::traits::ExtrinsicCall for Transaction<Call, Extra>
+  > frame_support::sp_runtime::traits::ExtrinsicCall for Transaction<Call, Extra>
 {
+  type Call = Call;
   fn call(&self) -> &Call {
     &self.mapped_call
   }
 }
 
-impl<
-    Call: 'static + TransactionMember + From<crate::Call>,
-    Extra: 'static + TransactionMember + sp_runtime::traits::SignedExtension,
-  > sp_runtime::traits::ExtrinsicMetadata for Transaction<Call, Extra>
-{
-  type SignedExtensions = Extra;
-
-  const VERSION: u8 = 0;
-}
-
 impl<
     Call: 'static + TransactionMember + From<crate::Call> + GetDispatchInfo,
     Extra: 'static + TransactionMember,
@@ -156,9 +136,10 @@ impl<
   }
 }
 
+use sp_runtime::generic::ExtrinsicFormat;
 impl<
-    Call: 'static + TransactionMember + From<crate::Call>,
-    Extra: 'static + TransactionMember + sp_runtime::traits::SignedExtension,
+    Call: 'static + TransactionMember + From<crate::Call> + sp_runtime::traits::Dispatchable,
+    Extra: 'static + TransactionMember + sp_runtime::traits::TransactionExtension<Call>,
   > sp_runtime::traits::BlindCheckable for Transaction<Call, Extra>
 {
   type Checked = sp_runtime::generic::CheckedExtrinsic<Public, Call, Extra>;
@@ -168,19 +149,33 @@ impl<
   ) -> Result<Self::Checked, sp_runtime::transaction_validity::TransactionValidityError> {
     Ok(match self.signature {
       Some((signer, signature, extra)) => {
-        if !signature.verify(
-          (&self.call, &extra, extra.additional_signed()?).encode().as_slice(),
-          &signer.into(),
-        ) {
+        if !signature
+          .verify((&self.call, &extra, extra.implicit()?).encode().as_slice(), &signer.into())
+        {
           Err(sp_runtime::transaction_validity::InvalidTransaction::BadProof)?
         }
 
         sp_runtime::generic::CheckedExtrinsic {
-          signed: Some((signer.into(), extra)),
+          format: ExtrinsicFormat::Signed(signer.into(), extra),
           function: self.mapped_call,
         }
       }
-      None => sp_runtime::generic::CheckedExtrinsic { signed: None, function: self.mapped_call },
+      None => sp_runtime::generic::CheckedExtrinsic {
+        format: ExtrinsicFormat::Bare,
+        function: self.mapped_call,
+      },
     })
   }
 }
+
+impl<
+    Call: 'static + TransactionMember + From<crate::Call> + TryInto<crate::Call>,
+    Extra: 'static + TransactionMember,
+  > frame_support::traits::InherentBuilder for Transaction<Call, Extra>
+{
+  /// Panics if the inherent isn't supported.
+  // TODO: Don't panic here
+  fn new_inherent(call: Self::Call) -> Self {
+    sp_runtime::traits::Extrinsic::new(call, None).expect("trying to build an unsupported inherent")
+  }
+}

substrate/abi/src/validator_sets.rs

@@ -5,7 +5,9 @@ pub use serai_validator_sets_primitives as primitives;
 use serai_primitives::*;
 use serai_validator_sets_primitives::*;
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]
 pub enum Call {
@@ -34,7 +36,9 @@ pub enum Call {
   },
 }
 
-#[derive(Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale_info::TypeInfo)]
+#[derive(
+  Clone, PartialEq, Eq, Debug, scale::Encode, scale::Decode, scale::DecodeWithMemTracking,
+)]
 #[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 #[cfg_attr(all(feature = "std", feature = "serde"), derive(serde::Deserialize))]