diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000..3163d9b
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,115 @@
+# This workflow checks each crate builds and runs, and for lints.
+name: Check
+
+# Runs this workflow
+on:
+  # On all pull requests, regardless of target branch
+  pull_request:
+  # On PRs in the merge queue
+  merge_group:
+  # After merges to main
+  push:
+    branches:
+      - main
+  # When a developer asks for a manual workflow run
+  workflow_dispatch:
+
+jobs:
+  build-rust:
+    name: 1. Build Rust crates
+    runs-on: ubuntu-latest
+    # Actions are pinned to a commit to prevent supply-chain attacks
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          # Use the same components in every step for caching
+          components: cargo,clippy,rustfmt
+      - name: Build each Rust crate
+        run: cargo build --workspace --all-targets --all-features
+
+  test-rust:
+    name: 2. Test Rust crates
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          components: cargo,clippy,rustfmt
+      - name: Test each Rust crate
+        run: cargo test --workspace --all-targets --all-features
+
+  run:
+    name: 3. Run default Rust crate
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          components: cargo,clippy,rustfmt
+      - name: Run default Rust crate
+        run: # cargo run --all-features --bin-name TODO
+
+  clippy-rust:
+    name: 4. Clippy lints on Rust crates
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          components: cargo,clippy,rustfmt
+      - name: Run clippy on Rust crates
+        run: cargo clippy --workspace --all-targets --all-features -- --deny warnings
+
+  doc-rust:
+    name: 5. Doc lints on Rust crates
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          components: cargo,clippy,rustfmt
+      - name: Run doc checks on Rust crates
+        run: cargo doc --workspace --all-features
+
+  fmt-rust:
+    name: 6. Code format on Rust crates
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0
+        with:
+          toolchain: nightly
+          components: cargo,clippy,rustfmt
+      - name: Run rustfmt checks on crates
+        run: cargo fmt --all -- --check
+
+  all:
+    name: All checks
+    # Always run this job, even if earlier steps were skipped (or failed):
+    # <https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks>
+    if: ${{ always() }}
+    runs-on: ubuntu-latest
+    needs:
+      - build-rust
+      - test-rust
+      - run
+      - clippy-rust
+      - doc-rust
+      - fmt-rust
+    steps:
+      - name: Fail if any other job failed
+        # Every job status needs to be checked here, because `always()` stops failures from propagating automatically
+        run: |
+          echo "Checking other jobs..."
+          [[ "${{ needs.build-rust.result }}" == "success" ]] || exit 1
+          [[ "${{ needs.test-rust.result }}" == "success" ]] || exit 1
+          [[ "${{ needs.run.result }}" == "success" ]] || exit 1
+          [[ "${{ needs.clippy-rust.result }}" == "success" ]] || exit 1
+          [[ "${{ needs.doc-rust.result }}" == "success" ]] || exit 1
+          [[ "${{ needs.fmt-rust.result }}" == "success" ]] || exit 1
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..ba697e0
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "example"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b6a23e249717cd6d24a8f3fcd9639403948df1227fe303a106396597a68277e"
+
+[[package]]
+name = "splat-overload"
+version = "0.0.0"
+dependencies = [
+ "example",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..b9804b5
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,30 @@
+[workspace]
+resolver = "3"
+members = [
+    "splat-overload",
+]
+default-members = [
+    "splat-overload",
+]
+
+[workspace.package]
+version = "0.0.0"
+authors = [
+    "teor <teor@riseup.net",
+]
+edition = "2024"
+homepage = "https://rust-lang.github.io/rust-project-goals/2026/overloading-for-ffi.html"
+keywords = [
+    "overload",
+    "C++",
+    "interop",
+]
+license = "MIT OR APACHE-2.0"
+readme = "README.md"
+repository = "https://github.com/rustfoundation/overloading-macros"
+# Requires #[splat] which was introduced just before 1.99 branched
+rust-version = "1.99"
+
+[workspace.dependencies]
+# Delete this package and replace it with the actual dependencies
+example = "1.1.0"
\ No newline at end of file
diff --git a/README.md b/README.md
index 42ce5f4..699dd26 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,14 @@
 # Rust Function Overloading Macros
 
-This repository contains macros and other code for function overloading in Rust.
+This repository contains *experimental* macros and other code for function overloading in Rust.
 
 Some of this code requires a recent nightly Rust compiler.
+
+## Quick Setup
+
+```sh
+rustup update nightly
+cd overloading-macros
+rustup override set nightly
+cargo build
+```
diff --git a/splat-overload/Cargo.toml b/splat-overload/Cargo.toml
new file mode 100644
index 0000000..4dfc053
--- /dev/null
+++ b/splat-overload/Cargo.toml
@@ -0,0 +1,16 @@
+# Modify the workspace Cargo.toml instead of this file (if possible)
+[package]
+name = "splat-overload"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+homepage.workspace = true
+keywords.workspace = true
+license.workspace = true
+readme.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+
+[dependencies]
+# Delete this package and replace it with the actual dependencies
+example.workspace = true
diff --git a/splat-overload/src/lib.rs b/splat-overload/src/lib.rs
new file mode 100644
index 0000000..793dee2
--- /dev/null
+++ b/splat-overload/src/lib.rs
@@ -0,0 +1 @@
+//! Delete this comment and add the actual code here