diff --git a/.github/workflows/rainix.yaml b/.github/workflows/rainix.yaml
index 1d40f59..a9c4eb9 100644
--- a/.github/workflows/rainix.yaml
+++ b/.github/workflows/rainix.yaml
@@ -31,4 +31,7 @@ jobs:
         env:
           ETH_RPC_URL: ${{ vars.CI_DEPLOY_SEPOLIA_RPC_URL }}
           ETHERSCAN_API_KEY: ${{ secrets.EXPLORER_VERIFICATION_KEY }}
-        run: nix develop --command ${{ matrix.task }}
\ No newline at end of file
+        run: nix develop --command ${{ matrix.task }}
+
+      - name: Build for wasm target
+        run: nix develop -c cargo build --target wasm32-unknown-unknown
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index ea8c4bf..d8f63cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
+.DS_Store
 /target
diff --git a/Cargo.lock b/Cargo.lock
index 7d0902e..98c93a6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2655,6 +2655,7 @@ dependencies = [
  "alloy-sol-types",
  "anyhow",
  "ethers",
+ "getrandom",
  "once_cell",
  "reqwest",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 25046ca..ad971f7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,9 @@ serde_json = "1.0.111"
 thiserror = "1.0.56"
 serde = "1.0.195"
 
+[target.'cfg(target_family = "wasm")'.dependencies]
+getrandom = { version = "0.2.11", features = ["js", "js-sys"] }
+
 [dev-dependencies]
 tokio = { version = "1.28.0", features = ["full"] }
 anyhow = "1.0.70"
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..cacb66b
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,279 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_4": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "foundry": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1719997877,
+        "narHash": "sha256-/Edw+w0PiGgxwnCeJycM0VgH4HtlCi91v1d8xbi+REE=",
+        "owner": "shazow",
+        "repo": "foundry.nix",
+        "rev": "02febba4f1cf0606d790acdb24adcf7a64afb4e1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "shazow",
+        "ref": "monthly",
+        "repo": "foundry.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1666753130,
+        "narHash": "sha256-Wff1dGPFSneXJLI2c0kkdWTgxnQ416KE6X4KnFkgPYQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f540aeda6f677354f1e7144ab04352f61aaa0118",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1720771713,
+        "narHash": "sha256-bfsLhD3deWYECwvo3b8AQPQkdx0Pqu3Qyds5UP6a2x0=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "2977213b607671ed2d9b8a935eb55ae998dbb964",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1718428119,
+        "narHash": "sha256-WdWDpNaq6u1IPtxtYHHWpl5BmabtpmLnMAx0RdJ/vo8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e6cea36f83499eb4e9cd184c8a8e823296b50ad5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1717112898,
+        "narHash": "sha256-7R2ZvOnvd9h8fDd65p0JnB7wXfUvreox3xFdYWd1BnY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6132b0f6e344ce2fe34fc051b72fb46e34f668e0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "rainix": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "foundry": "foundry",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay",
+        "solc": "solc"
+      },
+      "locked": {
+        "lastModified": 1720772500,
+        "narHash": "sha256-UFqI1xkg01ZddqOqJmUz3rG2jE4DusR9IwFcAbiCQ6M=",
+        "owner": "rainprotocol",
+        "repo": "rainix",
+        "rev": "eeb91c191c4b94b0a1716b3dd9956372a092474c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rainprotocol",
+        "repo": "rainix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "rainix": "rainix"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1720750737,
+        "narHash": "sha256-hPXe9Pr3s2EKRdDki3UkCKoPGlNkOhplCooNoC/L7Qc=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "a17c5d38c6fe47880eb8c6bede15d943ac2c4d17",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "solc": {
+      "inputs": {
+        "flake-utils": "flake-utils_4",
+        "nixpkgs": "nixpkgs_4",
+        "solc-macos-amd64-list-json": "solc-macos-amd64-list-json"
+      },
+      "locked": {
+        "lastModified": 1717442267,
+        "narHash": "sha256-6TnQvA6Q/xC3r1M+wGC5gnDc/5XfOPjC8X6LlGDWDNc=",
+        "owner": "hellwolf",
+        "repo": "solc.nix",
+        "rev": "2ac2862f224aa0d67cbc6b3246392489f8a50596",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hellwolf",
+        "repo": "solc.nix",
+        "type": "github"
+      }
+    },
+    "solc-macos-amd64-list-json": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-Prwz95BgMHcWd72VwVbcH17LsV9f24K2QMcUiWUQZzI=",
+        "type": "file",
+        "url": "https://github.com/ethereum/solc-bin/raw/f743ca7/macosx-amd64/list.json"
+      },
+      "original": {
+        "type": "file",
+        "url": "https://github.com/ethereum/solc-bin/raw/f743ca7/macosx-amd64/list.json"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}