diff --git a/app/.cargo/config.toml b/app/.cargo/config.toml
new file mode 100644
index 0000000..f4e8c00
--- /dev/null
+++ b/app/.cargo/config.toml
@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-unknown-unknown"
diff --git a/justfile b/justfile
index 1e1165b..6127ab1 100644
--- a/justfile
+++ b/justfile
@@ -21,9 +21,8 @@ build-all: build build-server
 serve:
     cargo run -p server
 
-# Build WASM (release) then run the server
-run: build
-    cargo run --release -p server
+# Build WASM then run the server
+run: build-dev serve
 
 # Type-check the workspace
 check:
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 62098d5..ff545b0 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
 channel = "1.98.1"
 targets = ["wasm32-unknown-unknown"]
-components = ["clippy", "rust-analyzer", "rustfmt"]
+components = ["clippy", "rust-analyzer", "rustfmt", "rust-src"]