diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index cf1adddd..00e05593 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -16,6 +16,7 @@ jobs:
     name: "Build CLIs ${{ matrix.target }} (${{ matrix.os }})"
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         include:
           - target: aarch64-pc-windows-msvc
@@ -64,6 +65,21 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
         with:
           cache-workspaces: "./libs -> ./target"
+          components: llvm-tools-preview
+      - name: Install linker (Windows)
+        if: ${{ matrix.os == 'windows-2022' }}
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-binutils
+      - name: Install linker (Linux)
+        if: ${{ matrix.os == 'ubuntu-22.04' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get install lld clang
+      - name: Install linker (MacOS)
+        if: ${{ matrix.os == 'macos-12' || matrix.os == 'macos-14' }}
+        run: |
+          brew install llvm
       - name: Build CLI
         run: |
           cd libs
@@ -215,9 +231,23 @@ jobs:
       - name: Install Rust stable toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
         with:
-          components: rustfmt
+          components: rustfmt, llvm-tools-preview
           rustflags: ""
           cache-workspaces: "./libs -> ./target"
+      - name: Install linker (Windows)
+        if: ${{ matrix.os == 'windows-2022' }}
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-binutils
+      - name: Install linker (Linux)
+        if: ${{ matrix.os == 'ubuntu-22.04' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get install lld clang
+      - name: Install linker (MacOS)
+        if: ${{ matrix.os == 'macos-12' || matrix.os == 'macos-14' }}
+        run: |
+          brew install llvm
       - name: Download pavex CLI artifact
         uses: actions/download-artifact@v4
         with:
diff --git a/.gitignore b/.gitignore
index babe2434..4a2e78f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 /libs/ui_test_envs2
 /libs/target
 /libs/vendor
-/libs/.cargo
 /doc_examples/tutorial_envs/
 /doc_examples/**/target
 /examples/**/vendor
diff --git a/libs/.cargo/config.toml b/libs/.cargo/config.toml
new file mode 100644
index 00000000..3cc95a6c
--- /dev/null
+++ b/libs/.cargo/config.toml
@@ -0,0 +1,20 @@
+# On Windows
+# ```
+# cargo install -f cargo-binutils
+# rustup component add llvm-tools-preview
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+[target.x86_64-pc-windows-gnu]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+# On Linux:
+# - Ubuntu, `sudo apt-get install lld clang`
+# - Arch, `sudo pacman -S lld clang`
+[target.x86_64-unknown-linux-gnu]
+rustflags = ["-C", "linker=clang", "-C", "link-arg=-fuse-ld=lld"]
+
+# On MacOS, `brew install llvm` and follow steps in `brew info llvm`
+[target.x86_64-apple-darwin]
+rustflags = ["-C", "link-arg=-fuse-ld=/usr/local/opt/llvm/bin/ld64.lld"]
+[target.aarch64-apple-darwin]
+rustflags = ["-C", "link-arg=-fuse-ld=/opt/homebrew/opt/llvm/bin/ld64.lld"]
diff --git a/libs/pavex_test_runner/src/lib.rs b/libs/pavex_test_runner/src/lib.rs
index ce6891f1..448a37d6 100644
--- a/libs/pavex_test_runner/src/lib.rs
+++ b/libs/pavex_test_runner/src/lib.rs
@@ -621,6 +621,28 @@ impl TestData {
             toml::to_string(&cargo_toml)?.as_bytes(),
         )?;
 
+        let cargo_config = toml! {
+            [build]
+            incremental = false
+
+            [target.x86_64-pc-windows-msvc]
+            rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+            [target.x86_64-pc-windows-gnu]
+            rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+            [target.x86_64-unknown-linux-gnu]
+            rustflags = ["-C", "linker=clang", "-C", "link-arg=-fuse-ld=lld"]
+            [target.x86_64-apple-darwin]
+            rustflags = ["-C", "link-arg=-fuse-ld=/usr/local/opt/llvm/bin/ld64.lld"]
+            [target.aarch64-apple-darwin]
+            rustflags = ["-C", "link-arg=-fuse-ld=/opt/homebrew/opt/llvm/bin/ld64.lld"]
+        };
+        let dot_cargo_folder = self.runtime_directory.join(".cargo");
+        fs_err::create_dir_all(&dot_cargo_folder)?;
+        persist_if_changed(
+            &dot_cargo_folder.join("config.toml"),
+            toml::to_string(&cargo_config)?.as_bytes(),
+        )?;
+
         let main_rs = format!(
             r##"use app_{}::blueprint;
 use pavex_cli_client::{{Client, config::Color}};