diff --git a/Cargo.lock b/Cargo.lock
index 094c4083..c50f9dbd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -301,7 +301,7 @@ checksum = "b6d7b9decdf35d8908a7e3ef02f64c5e9b1695e230154c0e8de3969142d9b94c"
 dependencies = [
  "futures",
  "pharos",
- "rustc_version",
+ "rustc_version 0.4.0",
 ]
 
 [[package]]
@@ -2235,7 +2235,7 @@ checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 [[package]]
 name = "fork-tree"
 version = "3.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
 ]
@@ -2253,7 +2253,7 @@ dependencies = [
 [[package]]
 name = "frame-benchmarking"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2275,7 +2275,7 @@ dependencies = [
 [[package]]
 name = "frame-benchmarking-cli"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "Inflector",
  "chrono",
@@ -2326,7 +2326,7 @@ dependencies = [
 [[package]]
 name = "frame-executive"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -2354,7 +2354,7 @@ dependencies = [
 [[package]]
 name = "frame-support"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "bitflags",
  "frame-metadata",
@@ -2384,7 +2384,7 @@ dependencies = [
 [[package]]
 name = "frame-support-procedural"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "Inflector",
  "frame-support-procedural-tools",
@@ -2396,7 +2396,7 @@ dependencies = [
 [[package]]
 name = "frame-support-procedural-tools"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support-procedural-tools-derive",
  "proc-macro-crate",
@@ -2408,7 +2408,7 @@ dependencies = [
 [[package]]
 name = "frame-support-procedural-tools-derive"
 version = "3.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2418,7 +2418,7 @@ dependencies = [
 [[package]]
 name = "frame-system"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support",
  "log",
@@ -2435,7 +2435,7 @@ dependencies = [
 [[package]]
 name = "frame-system-benchmarking"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -2450,7 +2450,7 @@ dependencies = [
 [[package]]
 name = "frame-system-rpc-runtime-api"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -2459,7 +2459,7 @@ dependencies = [
 [[package]]
 name = "frame-try-runtime"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support",
  "sp-api",
@@ -4915,7 +4915,7 @@ dependencies = [
 [[package]]
 name = "pallet-balances"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4927,10 +4927,105 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-contracts"
+version = "4.0.0-dev"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "bitflags",
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "log",
+ "pallet-contracts-primitives",
+ "pallet-contracts-proc-macro",
+ "parity-scale-codec",
+ "rand 0.8.5",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-sandbox",
+ "sp-std",
+ "wasm-instrument",
+ "wasmi-validation",
+]
+
+[[package]]
+name = "pallet-contracts-primitives"
+version = "6.0.0"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "bitflags",
+ "parity-scale-codec",
+ "scale-info",
+ "serde",
+ "sp-core",
+ "sp-rpc",
+ "sp-runtime",
+ "sp-std",
+]
+
+[[package]]
+name = "pallet-contracts-proc-macro"
+version = "4.0.0-dev"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "pallet-contracts-rpc"
+version = "4.0.0-dev"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "jsonrpsee",
+ "pallet-contracts-primitives",
+ "pallet-contracts-rpc-runtime-api",
+ "parity-scale-codec",
+ "serde",
+ "sp-api",
+ "sp-blockchain",
+ "sp-core",
+ "sp-rpc",
+ "sp-runtime",
+]
+
+[[package]]
+name = "pallet-contracts-rpc-runtime-api"
+version = "4.0.0-dev"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "pallet-contracts-primitives",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-api",
+ "sp-runtime",
+ "sp-std",
+]
+
+[[package]]
+name = "pallet-randomness-collective-flip"
+version = "4.0.0-dev"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+dependencies = [
+ "frame-support",
+ "frame-system",
+ "parity-scale-codec",
+ "safe-mix",
+ "scale-info",
+ "sp-runtime",
+ "sp-std",
+]
+
 [[package]]
 name = "pallet-timestamp"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4948,7 +5043,7 @@ dependencies = [
 [[package]]
 name = "pallet-transaction-payment"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4964,7 +5059,7 @@ dependencies = [
 [[package]]
 name = "pallet-transaction-payment-rpc"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "jsonrpsee",
  "pallet-transaction-payment-rpc-runtime-api",
@@ -4979,7 +5074,7 @@ dependencies = [
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "pallet-transaction-payment",
  "parity-scale-codec",
@@ -5282,7 +5377,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e9567389417feee6ce15dd6527a8a1ecac205ef62c2932bcf3d9f6fc5b78b414"
 dependencies = [
  "futures",
- "rustc_version",
+ "rustc_version 0.4.0",
 ]
 
 [[package]]
@@ -5881,7 +5976,7 @@ dependencies = [
 [[package]]
 name = "remote-externalities"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "env_logger",
  "jsonrpsee",
@@ -6082,6 +6177,15 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e75f6a532d0fd9f7f13144f392b6ad56a32696bfcd9c78f797f16bbb6f072d6"
 
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+dependencies = [
+ "semver 0.9.0",
+]
+
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -6175,6 +6279,15 @@ version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3f6f92acf49d1b98f7a81226834412ada05458b7364277387724a237f062695"
 
+[[package]]
+name = "safe-mix"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d3d055a2582e6b00ed7a31c1524040aa391092bf636328350813f3a0605215c"
+dependencies = [
+ "rustc_version 0.2.3",
+]
+
 [[package]]
 name = "salsa20"
 version = "0.9.0"
@@ -6196,7 +6309,7 @@ dependencies = [
 [[package]]
 name = "sc-allocator"
 version = "4.1.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "sp-core",
@@ -6207,7 +6320,7 @@ dependencies = [
 [[package]]
 name = "sc-basic-authorship"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "futures-timer",
@@ -6230,7 +6343,7 @@ dependencies = [
 [[package]]
 name = "sc-block-builder"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -6246,7 +6359,7 @@ dependencies = [
 [[package]]
 name = "sc-chain-spec"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "impl-trait-for-tuples",
  "memmap2 0.5.5",
@@ -6263,7 +6376,7 @@ dependencies = [
 [[package]]
 name = "sc-chain-spec-derive"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -6274,7 +6387,7 @@ dependencies = [
 [[package]]
 name = "sc-cli"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "chrono",
  "clap",
@@ -6313,7 +6426,7 @@ dependencies = [
 [[package]]
 name = "sc-client-api"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "fnv",
  "futures",
@@ -6341,7 +6454,7 @@ dependencies = [
 [[package]]
 name = "sc-client-db"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "hash-db",
  "kvdb",
@@ -6366,7 +6479,7 @@ dependencies = [
 [[package]]
 name = "sc-consensus"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "futures",
@@ -6390,7 +6503,7 @@ dependencies = [
 [[package]]
 name = "sc-consensus-pow"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "futures",
@@ -6415,7 +6528,7 @@ dependencies = [
 [[package]]
 name = "sc-executor"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "lazy_static",
  "lru",
@@ -6442,7 +6555,7 @@ dependencies = [
 [[package]]
 name = "sc-executor-common"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "environmental",
  "parity-scale-codec",
@@ -6459,7 +6572,7 @@ dependencies = [
 [[package]]
 name = "sc-executor-wasmi"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -6474,7 +6587,7 @@ dependencies = [
 [[package]]
 name = "sc-executor-wasmtime"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "cfg-if",
  "libc",
@@ -6494,7 +6607,7 @@ dependencies = [
 [[package]]
 name = "sc-informant"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "ansi_term",
  "futures",
@@ -6511,7 +6624,7 @@ dependencies = [
 [[package]]
 name = "sc-keystore"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "hex",
@@ -6526,7 +6639,7 @@ dependencies = [
 [[package]]
 name = "sc-network"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "asynchronous-codec",
@@ -6578,7 +6691,7 @@ dependencies = [
 [[package]]
 name = "sc-network-common"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "libp2p",
@@ -6591,7 +6704,7 @@ dependencies = [
 [[package]]
 name = "sc-network-light"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "libp2p",
@@ -6611,7 +6724,7 @@ dependencies = [
 [[package]]
 name = "sc-network-sync"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "bitflags",
  "either",
@@ -6640,7 +6753,7 @@ dependencies = [
 [[package]]
 name = "sc-offchain"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "bytes",
  "fnv",
@@ -6668,7 +6781,7 @@ dependencies = [
 [[package]]
 name = "sc-peerset"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "libp2p",
@@ -6681,7 +6794,7 @@ dependencies = [
 [[package]]
 name = "sc-proposer-metrics"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "substrate-prometheus-endpoint",
@@ -6690,7 +6803,7 @@ dependencies = [
 [[package]]
 name = "sc-rpc"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "hash-db",
@@ -6720,7 +6833,7 @@ dependencies = [
 [[package]]
 name = "sc-rpc-api"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "jsonrpsee",
@@ -6743,7 +6856,7 @@ dependencies = [
 [[package]]
 name = "sc-rpc-server"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "jsonrpsee",
@@ -6756,7 +6869,7 @@ dependencies = [
 [[package]]
 name = "sc-service"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "directories",
@@ -6821,7 +6934,7 @@ dependencies = [
 [[package]]
 name = "sc-state-db"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -6835,7 +6948,7 @@ dependencies = [
 [[package]]
 name = "sc-sysinfo"
 version = "6.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "libc",
@@ -6854,7 +6967,7 @@ dependencies = [
 [[package]]
 name = "sc-telemetry"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "chrono",
  "futures",
@@ -6872,7 +6985,7 @@ dependencies = [
 [[package]]
 name = "sc-tracing"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "ansi_term",
  "atty",
@@ -6903,7 +7016,7 @@ dependencies = [
 [[package]]
 name = "sc-tracing-proc-macro"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -6914,7 +7027,7 @@ dependencies = [
 [[package]]
 name = "sc-transaction-pool"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "futures-timer",
@@ -6941,7 +7054,7 @@ dependencies = [
 [[package]]
 name = "sc-transaction-pool-api"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "log",
@@ -6954,7 +7067,7 @@ dependencies = [
 [[package]]
 name = "sc-utils"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "futures-timer",
@@ -7132,6 +7245,15 @@ dependencies = [
  "semver-parser",
 ]
 
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
+dependencies = [
+ "semver-parser",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.12"
@@ -7186,6 +7308,7 @@ dependencies = [
  "frame-benchmarking-cli",
  "frame-system",
  "jsonrpsee",
+ "pallet-contracts-rpc",
  "pallet-transaction-payment",
  "pallet-transaction-payment-rpc",
  "sc-cli",
@@ -7252,6 +7375,10 @@ dependencies = [
  "frame-try-runtime",
  "hex-literal",
  "pallet-balances",
+ "pallet-contracts",
+ "pallet-contracts-primitives",
+ "pallet-contracts-rpc-runtime-api",
+ "pallet-randomness-collective-flip",
  "pallet-timestamp",
  "pallet-transaction-payment",
  "pallet-transaction-payment-rpc-runtime-api",
@@ -7524,7 +7651,7 @@ dependencies = [
  "curve25519-dalek 4.0.0-pre.1",
  "rand_core 0.6.3",
  "ring",
- "rustc_version",
+ "rustc_version 0.4.0",
  "sha2 0.10.2",
  "subtle",
 ]
@@ -7571,7 +7698,7 @@ dependencies = [
 [[package]]
 name = "sp-api"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "hash-db",
  "log",
@@ -7588,7 +7715,7 @@ dependencies = [
 [[package]]
 name = "sp-api-proc-macro"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "blake2",
  "proc-macro-crate",
@@ -7600,7 +7727,7 @@ dependencies = [
 [[package]]
 name = "sp-application-crypto"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
@@ -7613,7 +7740,7 @@ dependencies = [
 [[package]]
 name = "sp-arithmetic"
 version = "5.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "integer-sqrt",
  "num-traits",
@@ -7628,7 +7755,7 @@ dependencies = [
 [[package]]
 name = "sp-block-builder"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7640,7 +7767,7 @@ dependencies = [
 [[package]]
 name = "sp-blockchain"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "log",
@@ -7658,7 +7785,7 @@ dependencies = [
 [[package]]
 name = "sp-consensus"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "futures",
@@ -7677,7 +7804,7 @@ dependencies = [
 [[package]]
 name = "sp-consensus-pow"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7689,7 +7816,7 @@ dependencies = [
 [[package]]
 name = "sp-core"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "base58 0.2.0",
  "bitflags",
@@ -7735,7 +7862,7 @@ dependencies = [
 [[package]]
 name = "sp-core-hashing"
 version = "4.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "blake2",
  "byteorder",
@@ -7749,7 +7876,7 @@ dependencies = [
 [[package]]
 name = "sp-core-hashing-proc-macro"
 version = "5.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -7760,7 +7887,7 @@ dependencies = [
 [[package]]
 name = "sp-database"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "kvdb",
  "parking_lot 0.12.1",
@@ -7769,7 +7896,7 @@ dependencies = [
 [[package]]
 name = "sp-debug-derive"
 version = "4.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -7779,7 +7906,7 @@ dependencies = [
 [[package]]
 name = "sp-externalities"
 version = "0.12.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "environmental",
  "parity-scale-codec",
@@ -7790,7 +7917,7 @@ dependencies = [
 [[package]]
 name = "sp-finality-grandpa"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "finality-grandpa",
  "log",
@@ -7808,7 +7935,7 @@ dependencies = [
 [[package]]
 name = "sp-inherents"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "impl-trait-for-tuples",
@@ -7822,7 +7949,7 @@ dependencies = [
 [[package]]
 name = "sp-io"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures",
  "hash-db",
@@ -7847,7 +7974,7 @@ dependencies = [
 [[package]]
 name = "sp-keyring"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "lazy_static",
  "sp-core",
@@ -7858,7 +7985,7 @@ dependencies = [
 [[package]]
 name = "sp-keystore"
 version = "0.12.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "futures",
@@ -7875,7 +8002,7 @@ dependencies = [
 [[package]]
 name = "sp-maybe-compressed-blob"
 version = "4.1.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "thiserror",
  "zstd",
@@ -7884,7 +8011,7 @@ dependencies = [
 [[package]]
 name = "sp-offchain"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "sp-api",
  "sp-core",
@@ -7894,7 +8021,7 @@ dependencies = [
 [[package]]
 name = "sp-panic-handler"
 version = "4.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "backtrace",
  "lazy_static",
@@ -7904,7 +8031,7 @@ dependencies = [
 [[package]]
 name = "sp-rpc"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "rustc-hash",
  "serde",
@@ -7914,7 +8041,7 @@ dependencies = [
 [[package]]
 name = "sp-runtime"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "either",
  "hash256-std-hasher",
@@ -7936,7 +8063,7 @@ dependencies = [
 [[package]]
 name = "sp-runtime-interface"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -7953,7 +8080,7 @@ dependencies = [
 [[package]]
 name = "sp-runtime-interface-proc-macro"
 version = "5.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "Inflector",
  "proc-macro-crate",
@@ -7965,7 +8092,7 @@ dependencies = [
 [[package]]
 name = "sp-sandbox"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -7979,7 +8106,7 @@ dependencies = [
 [[package]]
 name = "sp-serializer"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "serde",
  "serde_json",
@@ -7988,7 +8115,7 @@ dependencies = [
 [[package]]
 name = "sp-session"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
@@ -8002,7 +8129,7 @@ dependencies = [
 [[package]]
 name = "sp-staking"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
@@ -8013,7 +8140,7 @@ dependencies = [
 [[package]]
 name = "sp-state-machine"
 version = "0.12.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "hash-db",
  "log",
@@ -8035,12 +8162,12 @@ dependencies = [
 [[package]]
 name = "sp-std"
 version = "4.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 
 [[package]]
 name = "sp-storage"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "impl-serde",
  "parity-scale-codec",
@@ -8053,7 +8180,7 @@ dependencies = [
 [[package]]
 name = "sp-tasks"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "log",
  "sp-core",
@@ -8066,7 +8193,7 @@ dependencies = [
 [[package]]
 name = "sp-timestamp"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "futures-timer",
@@ -8082,7 +8209,7 @@ dependencies = [
 [[package]]
 name = "sp-tracing"
 version = "5.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "sp-std",
@@ -8094,7 +8221,7 @@ dependencies = [
 [[package]]
 name = "sp-transaction-pool"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "sp-api",
  "sp-runtime",
@@ -8103,7 +8230,7 @@ dependencies = [
 [[package]]
 name = "sp-transaction-storage-proof"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "async-trait",
  "log",
@@ -8119,7 +8246,7 @@ dependencies = [
 [[package]]
 name = "sp-trie"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "hash-db",
  "memory-db",
@@ -8135,7 +8262,7 @@ dependencies = [
 [[package]]
 name = "sp-version"
 version = "5.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "impl-serde",
  "parity-scale-codec",
@@ -8152,7 +8279,7 @@ dependencies = [
 [[package]]
 name = "sp-version-proc-macro"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "parity-scale-codec",
  "proc-macro2",
@@ -8163,7 +8290,7 @@ dependencies = [
 [[package]]
 name = "sp-wasm-interface"
 version = "6.0.0"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "impl-trait-for-tuples",
  "log",
@@ -8308,7 +8435,7 @@ dependencies = [
 [[package]]
 name = "substrate-build-script-utils"
 version = "3.0.0"
-source = "git+https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.25#3348e144f0a2b39ce08bd8e3b976c42fe0c990b9"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "platforms",
 ]
@@ -8316,7 +8443,7 @@ dependencies = [
 [[package]]
 name = "substrate-frame-rpc-system"
 version = "4.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "frame-system-rpc-runtime-api",
  "futures",
@@ -8337,7 +8464,7 @@ dependencies = [
 [[package]]
 name = "substrate-prometheus-endpoint"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "futures-util",
  "hyper",
@@ -8350,7 +8477,7 @@ dependencies = [
 [[package]]
 name = "substrate-wasm-builder"
 version = "5.0.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "ansi_term",
  "build-helper",
@@ -8891,7 +9018,7 @@ checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
 [[package]]
 name = "try-runtime-cli"
 version = "0.10.0-dev"
-source = "git+https://github.com/serai-dex/substrate.git?branch=serai#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
+source = "git+https://github.com/serai-dex/substrate#8ca93b8422f98d226c3895caabf5d95e00a81cfb"
 dependencies = [
  "clap",
  "jsonrpsee",
@@ -9635,7 +9762,7 @@ dependencies = [
  "futures",
  "js-sys",
  "pharos",
- "rustc_version",
+ "rustc_version 0.4.0",
  "send_wrapper",
  "thiserror",
  "wasm-bindgen",
diff --git a/substrate/consensus/src/lib.rs b/substrate/consensus/src/lib.rs
index 43e2d7af..c6e6441f 100644
--- a/substrate/consensus/src/lib.rs
+++ b/substrate/consensus/src/lib.rs
@@ -76,7 +76,7 @@ async fn produce<
         worker_clone.submit(vec![]).await;
       });
     });
-    tokio::time::sleep(Duration::from_secs(5)).await;
+    tokio::time::sleep(Duration::from_secs(6)).await;
   }
 }
 
@@ -119,7 +119,7 @@ pub fn authority<S: sp_consensus::SelectChain<Block> + 'static>(
     network.clone(),
     None,
     move |_, _| async { Ok(sp_timestamp::InherentDataProvider::from_system_time()) },
-    Duration::from_secs(1),
+    Duration::from_secs(6),
     Duration::from_secs(2),
     can_author_with,
   );
diff --git a/substrate/node/Cargo.toml b/substrate/node/Cargo.toml
index 253ca724..b8b02851 100644
--- a/substrate/node/Cargo.toml
+++ b/substrate/node/Cargo.toml
@@ -39,6 +39,7 @@ sp-blockchain = { git = "https://github.com/serai-dex/substrate" }
 sp-block-builder = { git = "https://github.com/serai-dex/substrate" }
 substrate-frame-rpc-system = { git = "https://github.com/serai-dex/substrate" }
 pallet-transaction-payment-rpc = { git = "https://github.com/serai-dex/substrate" }
+pallet-contracts-rpc = { git = "https://github.com/serai-dex/substrate", package = "pallet-contracts-rpc" }
 
 # These dependencies are used for runtime benchmarking
 frame-benchmarking = { git = "https://github.com/serai-dex/substrate" }
diff --git a/substrate/node/src/rpc.rs b/substrate/node/src/rpc.rs
index 41520008..f76168c1 100644
--- a/substrate/node/src/rpc.rs
+++ b/substrate/node/src/rpc.rs
@@ -9,7 +9,7 @@ use sp_api::ProvideRuntimeApi;
 
 pub use sc_rpc_api::DenyUnsafe;
 
-use serai_runtime::{opaque::Block, AccountId, Balance, Index};
+use serai_runtime::{BlockNumber, Hash, opaque::Block, AccountId, Balance, Index};
 
 pub struct FullDeps<C, P> {
   pub client: Arc<C>,
@@ -29,18 +29,21 @@ pub fn create_full<
   deps: FullDeps<C, P>,
 ) -> Result<RpcModule<()>, Box<dyn std::error::Error + Send + Sync>>
 where
-  C::Api: substrate_frame_rpc_system::AccountNonceApi<Block, AccountId, Index>
-    + pallet_transaction_payment_rpc::TransactionPaymentRuntimeApi<Block, Balance>
-    + BlockBuilder<Block>,
+  C::Api: substrate_frame_rpc_system::AccountNonceApi<Block, AccountId, Index> +
+    pallet_transaction_payment_rpc::TransactionPaymentRuntimeApi<Block, Balance> +
+    pallet_contracts_rpc::ContractsRuntimeApi<Block, AccountId, Balance, BlockNumber, Hash> +
+    BlockBuilder<Block>,
 {
-  use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApiServer};
   use substrate_frame_rpc_system::{System, SystemApiServer};
+  use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApiServer};
+  use pallet_contracts_rpc::{Contracts, ContractsApiServer};
 
   let mut module = RpcModule::new(());
   let FullDeps { client, pool, deny_unsafe } = deps;
 
   module.merge(System::new(client.clone(), pool.clone(), deny_unsafe).into_rpc())?;
-  module.merge(TransactionPayment::new(client).into_rpc())?;
+  module.merge(TransactionPayment::new(client.clone()).into_rpc())?;
+  module.merge(Contracts::new(client).into_rpc())?;
 
   Ok(module)
 }
diff --git a/substrate/runtime/Cargo.toml b/substrate/runtime/Cargo.toml
index 543ee011..eb6d2ed2 100644
--- a/substrate/runtime/Cargo.toml
+++ b/substrate/runtime/Cargo.toml
@@ -29,10 +29,15 @@ frame-system = { git = "https://github.com/serai-dex/substrate", default-feature
 frame-executive = { git = "https://github.com/serai-dex/substrate", default-features = false }
 frame-try-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false, optional = true }
 
+pallet-randomness-collective-flip = { git = "https://github.com/serai-dex/substrate", default-features = false }
 pallet-timestamp = { git = "https://github.com/serai-dex/substrate", default-features = false }
 pallet-balances = { git = "https://github.com/serai-dex/substrate", default-features = false }
 pallet-transaction-payment = { git = "https://github.com/serai-dex/substrate", default-features = false }
 
+pallet-contracts-primitives = { git = "https://github.com/serai-dex/substrate", default-features = false }
+pallet-contracts = { git = "https://github.com/serai-dex/substrate", default-features = false }
+pallet-contracts-rpc-runtime-api = { git = "https://github.com/serai-dex/substrate", default-features = false }
+
 # Used for the node template's RPCs
 frame-system-rpc-runtime-api = { git = "https://github.com/serai-dex/substrate", default-features = false }
 pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/serai-dex/substrate", default-features = false }
@@ -65,10 +70,15 @@ std = [
   "frame-system/std",
   "frame-executive/std",
 
+  "pallet-randomness-collective-flip/std",
   "pallet-timestamp/std",
   "pallet-balances/std",
   "pallet-transaction-payment/std",
   "pallet-transaction-payment-rpc-runtime-api/std",
+
+	"pallet-contracts/std",
+	"pallet-contracts-primitives/std",
+	"pallet-contracts-rpc-runtime-api/std",
 ]
 
 runtime-benchmarks = [
@@ -87,6 +97,7 @@ try-runtime = [
   "frame-try-runtime",
   "frame-system/try-runtime",
 
+	"pallet-randomness-collective-flip/try-runtime",
   "pallet-timestamp/try-runtime",
   "pallet-balances/try-runtime",
   "pallet-transaction-payment/try-runtime",
diff --git a/substrate/runtime/src/lib.rs b/substrate/runtime/src/lib.rs
index 5052a505..ba0643d1 100644
--- a/substrate/runtime/src/lib.rs
+++ b/substrate/runtime/src/lib.rs
@@ -18,17 +18,19 @@ use sp_version::NativeVersion;
 use sp_version::RuntimeVersion;
 
 use frame_support::{
-  traits::{ConstU8, ConstU32, ConstU64},
+  traits::{OnRuntimeUpgrade, ConstU8, ConstU32, ConstU64},
   weights::{
-    constants::{RocksDbWeight, WEIGHT_PER_SECOND},
-    IdentityFee,
+    constants::{RocksDbWeight, ExtrinsicBaseWeight, BlockExecutionWeight, WEIGHT_PER_SECOND},
+    IdentityFee, Weight, DispatchClass,
   },
   parameter_types, construct_runtime,
 };
 pub use frame_system::Call as SystemCall;
+
 pub use pallet_timestamp::Call as TimestampCall;
 pub use pallet_balances::Call as BalancesCall;
 use pallet_transaction_payment::CurrencyAdapter;
+use pallet_contracts::{migration, DefaultContractAccessWeight};
 
 /// An index to a block
 pub type BlockNumber = u32;
@@ -90,15 +92,64 @@ pub fn native_version() -> NativeVersion {
 
 const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);
 
+/// We assume that ~10% of the block weight is consumed by `on_initialize` handlers.
+/// This is used to limit the maximal weight of a single extrinsic.
+const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(10);
+
+/// We allow for 2 seconds of compute with a 6 second average block time.
+const MAXIMUM_BLOCK_WEIGHT: Weight = 2 * WEIGHT_PER_SECOND;
+
+// Prints debug output of the `contracts` pallet to stdout if the node is
+// started with `-lruntime::contracts=debug`.
+const CONTRACTS_DEBUG_OUTPUT: bool = true;
+
+// Unit = the base number of indivisible units for balances
+const UNIT: Balance = 1_000_000_000_000;
+const MILLIUNIT: Balance = 1_000_000_000;
+
+const fn deposit(items: u32, bytes: u32) -> Balance {
+  (items as Balance * UNIT + (bytes as Balance) * (5 * MILLIUNIT / 100)) / 10
+}
+
 parameter_types! {
   pub const BlockHashCount: BlockNumber = 2400;
   pub const Version: RuntimeVersion = VERSION;
-  /// Allow for 2 seconds of compute with a 6 second average block time
-  pub BlockWeights: frame_system::limits::BlockWeights = frame_system::limits::BlockWeights
-    ::with_sensible_defaults(2 * WEIGHT_PER_SECOND, NORMAL_DISPATCH_RATIO);
-  pub BlockLength: frame_system::limits::BlockLength = frame_system::limits::BlockLength
-    ::max_with_normal_ratio(1024 * 1024, NORMAL_DISPATCH_RATIO);
+
   pub const SS58Prefix: u8 = 42; // TODO: Remove
+
+  // 1 MB block size limit
+  pub BlockLength: frame_system::limits::BlockLength =
+    frame_system::limits::BlockLength::max_with_normal_ratio(1024 * 1024, NORMAL_DISPATCH_RATIO);
+  pub BlockWeights: frame_system::limits::BlockWeights =
+    frame_system::limits::BlockWeights::builder()
+      .base_block(BlockExecutionWeight::get())
+      .for_class(DispatchClass::all(), |weights| {
+        weights.base_extrinsic = ExtrinsicBaseWeight::get();
+      })
+      .for_class(DispatchClass::Normal, |weights| {
+        weights.max_total = Some(NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT);
+      })
+      .for_class(DispatchClass::Operational, |weights| {
+        weights.max_total = Some(MAXIMUM_BLOCK_WEIGHT);
+        // Operational transactions have some extra reserved space, so that they
+        // are included even if block reached `MAXIMUM_BLOCK_WEIGHT`.
+        weights.reserved = Some(
+          MAXIMUM_BLOCK_WEIGHT - NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT
+        );
+      })
+      .avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
+      .build_or_panic();
+
+  pub const DepositPerItem: Balance = deposit(1, 0);
+  pub const DepositPerByte: Balance = deposit(0, 1);
+  pub const DeletionQueueDepth: u32 = 128;
+  // The lazy deletion runs inside on_initialize.
+  pub DeletionWeightLimit: Weight = BlockWeights::get()
+    .per_class
+    .get(DispatchClass::Normal)
+    .max_total
+    .unwrap_or(BlockWeights::get().max_block);
+  pub Schedule: pallet_contracts::Schedule<Runtime> = Default::default();
 }
 
 impl frame_system::Config for Runtime {
@@ -131,6 +182,8 @@ impl frame_system::Config for Runtime {
   type MaxConsumers = frame_support::traits::ConstU32<16>;
 }
 
+impl pallet_randomness_collective_flip::Config for Runtime {}
+
 impl pallet_timestamp::Config for Runtime {
   type Moment = u64;
   type OnTimestampSet = ();
@@ -159,6 +212,44 @@ impl pallet_transaction_payment::Config for Runtime {
   type FeeMultiplierUpdate = ();
 }
 
+impl pallet_contracts::Config for Runtime {
+  type Time = Timestamp;
+  type Randomness = RandomnessCollectiveFlip;
+  type Currency = Balances;
+  type Event = Event;
+  type Call = Call;
+
+  /// The safest default is to allow no calls at all.
+  ///
+  /// Runtimes should whitelist dispatchables that are allowed to be called from contracts
+  /// and make sure they are stable. Dispatchables exposed to contracts are not allowed to
+  /// change because that would break already deployed contracts. The `Call` structure itself
+  /// is not allowed to change the indices of existing pallets, too.
+  type CallFilter = frame_support::traits::Nothing;
+  type DepositPerItem = DepositPerItem;
+  type DepositPerByte = DepositPerByte;
+  type CallStack = [pallet_contracts::Frame<Self>; 31];
+  type WeightPrice = pallet_transaction_payment::Pallet<Self>;
+  type WeightInfo = pallet_contracts::weights::SubstrateWeight<Self>;
+  type ChainExtension = ();
+  type DeletionQueueDepth = DeletionQueueDepth;
+  type DeletionWeightLimit = DeletionWeightLimit;
+  type Schedule = Schedule;
+  type AddressGenerator = pallet_contracts::DefaultAddressGenerator;
+  type ContractAccessWeight = DefaultContractAccessWeight<BlockWeights>;
+
+  type MaxCodeLen = ConstU32<{ 128 * 1024 }>;
+  type RelaxedMaxCodeLen = ConstU32<{ 256 * 1024 }>;
+  type MaxStorageKeyLen = ConstU32<128>;
+}
+
+pub struct Migrations;
+impl OnRuntimeUpgrade for Migrations {
+  fn on_runtime_upgrade() -> Weight {
+    migration::migrate::<Runtime>()
+  }
+}
+
 pub type Address = sp_runtime::MultiAddress<AccountId, ()>;
 pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
 pub type Block = generic::Block<Header, UncheckedExtrinsic>;
@@ -189,9 +280,11 @@ construct_runtime!(
     UncheckedExtrinsic = UncheckedExtrinsic
   {
     System: frame_system,
+  RandomnessCollectiveFlip: pallet_randomness_collective_flip,
     Timestamp: pallet_timestamp,
     Balances: pallet_balances,
-    TransactionPayment: pallet_transaction_payment
+    TransactionPayment: pallet_transaction_payment,
+  Contracts: pallet_contracts,
   }
 );
 
@@ -364,6 +457,65 @@ impl_runtime_apis! {
     }
   }
 
+  impl pallet_contracts_rpc_runtime_api::ContractsApi<Block, AccountId, Balance, BlockNumber, Hash>
+      for Runtime
+  {
+    fn call(
+      origin: AccountId,
+      dest: AccountId,
+      value: Balance,
+      gas_limit: u64,
+      storage_deposit_limit: Option<Balance>,
+      input_data: Vec<u8>,
+    ) -> pallet_contracts_primitives::ContractExecResult<Balance> {
+      Contracts::bare_call(
+        origin,
+        dest,
+        value,
+        gas_limit,
+        storage_deposit_limit,
+        input_data,
+        CONTRACTS_DEBUG_OUTPUT
+      )
+    }
+
+    fn instantiate(
+      origin: AccountId,
+      value: Balance,
+      gas_limit: u64,
+      storage_deposit_limit: Option<Balance>,
+      code: pallet_contracts_primitives::Code<Hash>,
+      data: Vec<u8>,
+      salt: Vec<u8>,
+    ) -> pallet_contracts_primitives::ContractInstantiateResult<AccountId, Balance> {
+      Contracts::bare_instantiate(
+        origin,
+        value,
+        gas_limit,
+        storage_deposit_limit,
+        code,
+        data,
+        salt,
+        CONTRACTS_DEBUG_OUTPUT
+      )
+    }
+
+    fn upload_code(
+      origin: AccountId,
+      code: Vec<u8>,
+      storage_deposit_limit: Option<Balance>,
+    ) -> pallet_contracts_primitives::CodeUploadResult<Hash, Balance> {
+      Contracts::bare_upload_code(origin, code, storage_deposit_limit)
+    }
+
+    fn get_storage(
+      address: AccountId,
+      key: Vec<u8>,
+    ) -> pallet_contracts_primitives::GetStorageResult {
+      Contracts::get_storage(address, key)
+    }
+  }
+
   #[cfg(feature = "try-runtime")]
   impl frame_try_runtime::TryRuntime<Block> for Runtime {
     fn on_runtime_upgrade() -> (Weight, Weight) {