manual setup

docs/contracts/v4/quickstart/02-manage-liquidity/00-setup-liquidity.mdx

@@ -24,6 +24,28 @@ forge install
 
 ---
 
-## Manual
-
-(TODO: Add instructions for manual setup)
+## Manual Setup
+
+After cloning the repository, and installing foundry, developers can manually set up their Uniswap v4 environment:
+
+1. Initialize a foundry project
+    ```bash
+    forge init . --force
+    ```
+
+2. Install dependencies
+    ```bash
+    forge install uniswap/v4-core
+    forge install uniswap/v4-periphery
+    ```
+
+3. Set the `remappings.txt` to:
+    ```
+    @uniswap/v4-core/=lib/v4-core/
+    forge-gas-snapshot/=lib/v4-core/lib/forge-gas-snapshot/src/
+    forge-std/=lib/v4-core/lib/forge-std/src/
+    permit2/=lib/v4-periphery/lib/permit2/
+    solmate/=lib/v4-core/lib/solmate/
+    v4-core/=lib/v4-core/
+    v4-periphery/=lib/v4-periphery/
+    ```