diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74e67f9c1394..82b1be3af855 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,105 +17,105 @@ env:
   RUSTUP_MAX_RETRIES: 10
   PYTHON_VERSION: "3.12"
 
-jobs:
-  cargo-fmt:
-    name: "cargo fmt"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Install Rust toolchain"
-        run: rustup component add rustfmt
-      - name: "rustfmt"
-        run: cargo fmt --all --check
-
-  cargo-clippy:
-    name: "cargo clippy"
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-      fail-fast: false
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Install Rust toolchain"
-        run: rustup component add clippy
-      - uses: Swatinem/rust-cache@v2
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - name: "Clippy"
-        run: cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
-
-  cargo-test:
-    strategy:
-      matrix:
-        include:
-          # We use the large GitHub actions runners for faster testing
-          # For Ubuntu and Windows, this requires Organization-level configuration
-          # See: https://docs.github.com/en/actions/using-github-hosted-runners/about-larger-runners/about-larger-runners#about-ubuntu-and-windows-larger-runners
-          - { os: "ubuntu", runner: "ubuntu-latest-large" }
-          - { os: "windows", runner: "windows-latest-large" }
-          - { os: "macos", runner: "macos-14" }
-      fail-fast: false
-    runs-on:
-      labels: ${{ matrix.runner }}
-    name: "cargo test | ${{ matrix.os }}"
-    steps:
-      - uses: actions/checkout@v4
-      - if: ${{ matrix.os == 'macos' }}
-        name: "Install bootstrap dependencies"
-        run: brew install coreutils
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-      - name: "Install pipx"
-        run: pip install pipx
-      - name: "Install required Python versions"
-        run: pipx run scripts/bootstrap/install.py
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - if: ${{ matrix.os != 'windows' }}
-        uses: rui314/setup-mold@v1
-      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@v2
-        with:
-          tool: cargo-nextest
-      - uses: Swatinem/rust-cache@v2
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - name: "Cargo test"
-        run: |
-          cargo nextest run --workspace --status-level skip --failure-output immediate-final --no-fail-fast -j 12 --final-status-level slow
-      - name: "Smoke test"
-        if: ${{ matrix.os != 'windows' }}
-        run: |
-          uv="./target/debug/uv"
-          $uv venv
-          $uv pip install ruff
-      - name: "Smoke test"
-        if: ${{ matrix.os == 'windows' }}
-        run: |
-          Set-Alias -Name uv -Value ./target/debug/uv
-          uv venv
-          uv pip install ruff
-
-  # Separate job for the nightly crate
-  windows-trampoline:
-    runs-on: windows-latest
-    name: "check windows trampoline"
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Install Rust toolchain"
-        working-directory: crates/uv-trampoline
-        run: |
-          rustup target add x86_64-pc-windows-msvc
-          rustup component add clippy rust-src --toolchain nightly-2024-01-23-x86_64-pc-windows-msvc
-      - uses: rui314/setup-mold@v1
-      - uses: Swatinem/rust-cache@v2
-        with:
-          workspaces: "crates/uv-trampoline"
-      - name: "Clippy"
-        working-directory: crates/uv-trampoline
-        run: cargo clippy --all-features --locked --target x86_64-pc-windows-msvc -- -D warnings
-      - name: "Build"
-        working-directory: crates/uv-trampoline
-        run: cargo build --release --target x86_64-pc-windows-msvc
+#jobs:
+#  cargo-fmt:
+#    name: "cargo fmt"
+#    runs-on: ubuntu-latest
+#    steps:
+#      - uses: actions/checkout@v4
+#      - name: "Install Rust toolchain"
+#        run: rustup component add rustfmt
+#      - name: "rustfmt"
+#        run: cargo fmt --all --check
+#
+#  cargo-clippy:
+#    name: "cargo clippy"
+#    strategy:
+#      matrix:
+#        os: [ubuntu-latest, windows-latest]
+#      fail-fast: false
+#    runs-on: ${{ matrix.os }}
+#    steps:
+#      - uses: actions/checkout@v4
+#      - name: "Install Rust toolchain"
+#        run: rustup component add clippy
+#      - uses: Swatinem/rust-cache@v2
+#        with:
+#          save-if: ${{ github.ref == 'refs/heads/main' }}
+#      - name: "Clippy"
+#        run: cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
+#
+#  cargo-test:
+#    strategy:
+#      matrix:
+#        include:
+#          # We use the large GitHub actions runners for faster testing
+#          # For Ubuntu and Windows, this requires Organization-level configuration
+#          # See: https://docs.github.com/en/actions/using-github-hosted-runners/about-larger-runners/about-larger-runners#about-ubuntu-and-windows-larger-runners
+#          - { os: "ubuntu", runner: "ubuntu-latest-large" }
+#          - { os: "windows", runner: "windows-latest-large" }
+#          - { os: "macos", runner: "macos-14" }
+#      fail-fast: false
+#    runs-on:
+#      labels: ${{ matrix.runner }}
+#    name: "cargo test | ${{ matrix.os }}"
+#    steps:
+#      - uses: actions/checkout@v4
+#      - if: ${{ matrix.os == 'macos' }}
+#        name: "Install bootstrap dependencies"
+#        run: brew install coreutils
+#      - uses: actions/setup-python@v5
+#        with:
+#          python-version: "3.12"
+#      - name: "Install pipx"
+#        run: pip install pipx
+#      - name: "Install required Python versions"
+#        run: pipx run scripts/bootstrap/install.py
+#      - name: "Install Rust toolchain"
+#        run: rustup show
+#      - if: ${{ matrix.os != 'windows' }}
+#        uses: rui314/setup-mold@v1
+#      - name: "Install cargo nextest"
+#        uses: taiki-e/install-action@v2
+#        with:
+#          tool: cargo-nextest
+#      - uses: Swatinem/rust-cache@v2
+#        with:
+#          save-if: ${{ github.ref == 'refs/heads/main' }}
+#      - name: "Cargo test"
+#        run: |
+#          cargo nextest run --workspace --status-level skip --failure-output immediate-final --no-fail-fast -j 12 --final-status-level slow
+#      - name: "Smoke test"
+#        if: ${{ matrix.os != 'windows' }}
+#        run: |
+#          uv="./target/debug/uv"
+#          $uv venv
+#          $uv pip install ruff
+#      - name: "Smoke test"
+#        if: ${{ matrix.os == 'windows' }}
+#        run: |
+#          Set-Alias -Name uv -Value ./target/debug/uv
+#          uv venv
+#          uv pip install ruff
+#
+#  # Separate job for the nightly crate
+#  windows-trampoline:
+#    runs-on: windows-latest
+#    name: "check windows trampoline"
+#    steps:
+#      - uses: actions/checkout@v4
+#      - name: "Install Rust toolchain"
+#        working-directory: crates/uv-trampoline
+#        run: |
+#          rustup target add x86_64-pc-windows-msvc
+#          rustup component add clippy rust-src --toolchain nightly-2024-01-23-x86_64-pc-windows-msvc
+#      - uses: rui314/setup-mold@v1
+#      - uses: Swatinem/rust-cache@v2
+#        with:
+#          workspaces: "crates/uv-trampoline"
+#      - name: "Clippy"
+#        working-directory: crates/uv-trampoline
+#        run: cargo clippy --all-features --locked --target x86_64-pc-windows-msvc -- -D warnings
+#      - name: "Build"
+#        working-directory: crates/uv-trampoline
+#        run: cargo build --release --target x86_64-pc-windows-msvc
diff --git a/.github/workflows/system-install.yml b/.github/workflows/system-install.yml
new file mode 100644
index 000000000000..9e6d1a6a52cb
--- /dev/null
+++ b/.github/workflows/system-install.yml
@@ -0,0 +1,97 @@
+name: System Install
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+  PYTHON_VERSION: "3.12"
+
+jobs:
+  # Install Python on Ubuntu.
+  install-ubuntu:
+    name: "Install Python on Ubuntu"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: "Install Rust toolchain"
+        run: rustup update
+
+      - uses: Swatinem/rust-cache@v2
+#        with:
+#          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: "Build"
+        run: cargo build
+
+      - name: "Validate global Python install"
+        run: python3.12 check_system_python.py $(which python3.12) --uv ./target/debug/uv
+
+  # Install Python on macOS.
+  install-macos:
+    name: "Install Python on macOS"
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: "Install Python"
+        run: brew install python@3.8
+
+      - name: "Install Rust toolchain"
+        run: rustup update
+
+      - uses: Swatinem/rust-cache@v2
+#        with:
+#          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: "Build"
+        run: cargo build
+
+      - name: "Validate global Python install"
+        run: python3.8 check_system_python.py $(which python3.8) --uv ./target/debug/uv
+
+  # Install Python on Windows.
+  install-windows:
+    name: "Install Python on Windows"
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: "Install Python"
+        run: choco install python
+
+#      - name: "Install Rust toolchain"
+#        run: rustup update
+#
+#      - uses: Swatinem/rust-cache@v2
+##        with:
+##          save-if: ${{ github.ref == 'refs/heads/main' }}
+#
+#      - name: "Build"
+#        run: cargo build
+
+      # Print Python path.
+      - name: "Print Python path"
+        run: |
+          echo "Python path: $(which python3.12)"
+
+#      # Print uv path.
+#      - name: "Print uv path"
+#        run: |
+#          echo "uv path: $(which ./target/debug/uv)"
+
+      - name: "Validate global Python install"
+        run: C:\ProgramData\Chocolatey\bin\python3.12 check_system_python.py C:\ProgramData\Chocolatey\bin\python3.12 --uv ./target/debug/uv
diff --git a/check_system_python.py b/check_system_python.py
index 7e74b48a8176..e40f84085511 100644
--- a/check_system_python.py
+++ b/check_system_python.py
@@ -23,8 +23,8 @@
     code = subprocess.run(
         [python, "-m", "pip", "show", "black"],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+        # stdout=subprocess.DEVNULL,
+        # stderr=subprocess.DEVNULL,
     )
     if code.returncode == 0:
         raise Exception("The package `black` is installed.")
@@ -34,8 +34,8 @@
     subprocess.run(
         [uv, "pip", "install", "black", "--python", python],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+#         stdout=subprocess.DEVNULL,
+#         stderr=subprocess.DEVNULL,
         check=True,
     )
 
@@ -44,8 +44,8 @@
     code = subprocess.run(
         [python, "-m", "pip", "show", "black"],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+#         stdout=subprocess.DEVNULL,
+#         stderr=subprocess.DEVNULL,
     )
     if code.returncode != 0:
         raise Exception("The package `black` isn't installed.")
@@ -55,8 +55,8 @@
     code = subprocess.run(
         ["black", "--version"],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+#         stdout=subprocess.DEVNULL,
+#         stderr=subprocess.DEVNULL,
     )
     if code.returncode != 0:
         raise Exception("The package `black` isn't in the path.")
@@ -66,8 +66,8 @@
     subprocess.run(
         [uv, "pip", "uninstall", "black", "--python", python],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+#         stdout=subprocess.DEVNULL,
+#         stderr=subprocess.DEVNULL,
         check=True,
     )
 
@@ -76,8 +76,8 @@
     code = subprocess.run(
         [python, "-m", "pip", "show", "black"],
         cwd=temp_dir,
-        stdout=subprocess.DEVNULL,
-        stderr=subprocess.DEVNULL,
+#         stdout=subprocess.DEVNULL,
+#         stderr=subprocess.DEVNULL,
     )
     if code.returncode == 0:
         raise Exception("The package `black` is installed.")
diff --git a/crates/uv/src/main.rs b/crates/uv/src/main.rs
index 7c33e5081b9d..747c64610f8a 100644
--- a/crates/uv/src/main.rs
+++ b/crates/uv/src/main.rs
@@ -440,6 +440,11 @@ struct PipSyncArgs {
     no_index: bool,
 
     /// The Python interpreter into which packages should be installed.
+    ///
+    /// By default, `uv` installs into the virtual environment in the current working directory or
+    /// any parent directory. The `--python` option allows you to specify a different interpreter,
+    /// which is intended for use in continuous integration (CI) environments or other automated
+    /// workflows.
     #[clap(long)]
     python: Option<PathBuf>,
 
@@ -613,6 +618,11 @@ struct PipInstallArgs {
     no_index: bool,
 
     /// The Python interpreter into which packages should be installed.
+    ///
+    /// By default, `uv` installs into the virtual environment in the current working directory or
+    /// any parent directory. The `--python` option allows you to specify a different interpreter,
+    /// which is intended for use in continuous integration (CI) environments or other automated
+    /// workflows.
     #[clap(long)]
     python: Option<PathBuf>,
 
@@ -686,6 +696,11 @@ struct PipUninstallArgs {
     editable: Vec<String>,
 
     /// The Python interpreter from which packages should be uninstalled.
+    ///
+    /// By default, `uv` uninstalls from the virtual environment in the current working directory or
+    /// any parent directory. The `--python` option allows you to specify a different interpreter,
+    /// which is intended for use in continuous integration (CI) environments or other automated
+    /// workflows.
     #[clap(long)]
     python: Option<PathBuf>,
 }