diff --git a/.cargo/config.toml b/.cargo/config.toml
index 0de47a0..c6820d7 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,10 +1,2 @@
 [build]
-target = "wasm32-unknown-unknown"
-
-[target.wasm32-unknown-unknown]
-rustflags = [
-    "-C", "opt-level=z",
-    "-C", "codegen-units=1",
-    "-C", "strip=symbols",
-]
-
+target = "wasm32v1-none"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..3053e54
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32v1-none
+          components: rustfmt, clippy
+
+      - run: cargo fmt --all --check
+
+      - run: cargo clippy --all-targets --target x86_64-unknown-linux-gnu -- -D warnings
+
+      - run: cargo test --all --target x86_64-unknown-linux-gnu
+
+      - name: WASM build
+        run: cargo build --target wasm32v1-none --release --all
+
+      - name: Report contract sizes
+        run: |
+          find target/wasm32v1-none/release -maxdepth 1 -name "*.wasm" \
+            -exec sh -c 'echo "$(basename $1): $(wc -c < $1) bytes"' _ {} \;
diff --git a/Cargo.toml b/Cargo.toml
index 2163f35..2bd07ac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,21 +1,10 @@
 [workspace]
 resolver = "2"
 members = [
-    "crates/contracts/core",
-    "crates/tools",
+    "campaign",
+    "token-bridge",
+    "common",
 ]
 
-[workspace.package]
-version = "0.1.0"
-edition = "2021"
-rust-version = "1.78"
-license = "MIT"
-
 [workspace.dependencies]
-soroban-sdk = "21.0.0"
-stellar-strkey = "0.0.8"
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-tokio = { version = "1.0", features = ["full"] }
-anyhow = "1.0"
-dotenv = "0.15"
+soroban-sdk = { version = "26.0.1" }
diff --git a/campaign/Cargo.toml b/campaign/Cargo.toml
new file mode 100644
index 0000000..3d3f70c
--- /dev/null
+++ b/campaign/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "campaign"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+soroban-sdk = { workspace = true }
+common = { path = "../common" }
+
+[dev-dependencies]
+soroban-sdk = { version = "26.0.1", features = ["testutils"] }
diff --git a/campaign/src/lib.rs b/campaign/src/lib.rs
new file mode 100644
index 0000000..b8586af
--- /dev/null
+++ b/campaign/src/lib.rs
@@ -0,0 +1,12 @@
+#![no_std]
+use soroban_sdk::{contract, contractimpl, Env};
+
+#[contract]
+pub struct CampaignContract;
+
+#[contractimpl]
+impl CampaignContract {
+    pub fn hello(env: Env) -> soroban_sdk::Symbol {
+        soroban_sdk::Symbol::new(&env, "campaign")
+    }
+}
diff --git a/common/Cargo.toml b/common/Cargo.toml
new file mode 100644
index 0000000..817633d
--- /dev/null
+++ b/common/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "common"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+soroban-sdk = { workspace = true }
+
+[dev-dependencies]
+soroban-sdk = { version = "26.0.1", features = ["testutils"] }
diff --git a/common/src/lib.rs b/common/src/lib.rs
new file mode 100644
index 0000000..92a5077
--- /dev/null
+++ b/common/src/lib.rs
@@ -0,0 +1,9 @@
+#![no_std]
+use soroban_sdk::contracterror;
+
+#[contracterror]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+pub enum Error {
+    NotInitialized = 1,
+    AlreadyInitialized = 2,
+}
diff --git a/token-bridge/Cargo.toml b/token-bridge/Cargo.toml
new file mode 100644
index 0000000..be67087
--- /dev/null
+++ b/token-bridge/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "token-bridge"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+soroban-sdk = { workspace = true }
+common = { path = "../common" }
+
+[dev-dependencies]
+soroban-sdk = { version = "26.0.1", features = ["testutils"] }
diff --git a/token-bridge/src/lib.rs b/token-bridge/src/lib.rs
new file mode 100644
index 0000000..dddd4af
--- /dev/null
+++ b/token-bridge/src/lib.rs
@@ -0,0 +1,12 @@
+#![no_std]
+use soroban_sdk::{contract, contractimpl, Env};
+
+#[contract]
+pub struct TokenBridgeContract;
+
+#[contractimpl]
+impl TokenBridgeContract {
+    pub fn hello(env: Env) -> soroban_sdk::Symbol {
+        soroban_sdk::Symbol::new(&env, "token_bridge")
+    }
+}