diff --git a/Cargo.lock b/Cargo.lock
index 8c6048b..51a264c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,18 +2,40 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "anyhow"
+version = "1.0.56"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
+
 [[package]]
 name = "arbitrary"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c38b6b6b79f671c25e1a3e785b7b82d7562ffc9cd3efdc98627e5668a2472490"
+dependencies = [
+ "derive_arbitrary",
+]
+
+[[package]]
+name = "derive_arbitrary"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98e23c06c035dac87bd802d98f368df73a7f2cb05a66ffbd1f377e821fac4af9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.88 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "fuzz-rustc-ast"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "arbitrary",
- "syn",
+ "quote",
+ "syn 1.0.88 (git+https://github.com/Nilstrieb/syn?branch=arbitrary)",
 ]
 
 [[package]]
@@ -37,7 +59,18 @@ dependencies = [
 [[package]]
 name = "syn"
 version = "1.0.88"
-source = "git+https://github.com/Nilstrieb/syn?branch=arbitrary#a0860e2ae754ade1340683bc54e403540202484b"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebd69e719f31e88618baa1eaa6ee2de5c9a1c004f1e9ecdb58e8352a13f20a01"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.88"
+source = "git+https://github.com/Nilstrieb/syn?branch=arbitrary#521b62a2934ab332a3a4f248f0dc4ca34648bc9e"
 dependencies = [
  "arbitrary",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 7fd3ae8..8c6ea47 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+anyhow = "1.0.56"
 arbitrary = "1.1.0"
+quote = "1.0.15"
 # fork of syn with the arbitrary trait impls
 syn = { git = "https://github.com/Nilstrieb/syn", branch = "arbitrary", features = ["full", "arbitrary"] }
 
diff --git a/fuzz/.gitignore b/fuzz/.gitignore
new file mode 100644
index 0000000..a092511
--- /dev/null
+++ b/fuzz/.gitignore
@@ -0,0 +1,3 @@
+target
+corpus
+artifacts
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
new file mode 100644
index 0000000..3412d85
--- /dev/null
+++ b/fuzz/Cargo.lock
@@ -0,0 +1,116 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "anyhow"
+version = "1.0.56"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
+
+[[package]]
+name = "arbitrary"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c38b6b6b79f671c25e1a3e785b7b82d7562ffc9cd3efdc98627e5668a2472490"
+dependencies = [
+ "derive_arbitrary",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
+[[package]]
+name = "derive_arbitrary"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98e23c06c035dac87bd802d98f368df73a7f2cb05a66ffbd1f377e821fac4af9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.88 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuzz-rustc-ast"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "arbitrary",
+ "quote",
+ "syn 1.0.88 (git+https://github.com/Nilstrieb/syn?branch=arbitrary)",
+]
+
+[[package]]
+name = "fuzz-rustc-ast-fuzz"
+version = "0.0.0"
+dependencies = [
+ "fuzz-rustc-ast",
+ "libfuzzer-sys",
+]
+
+[[package]]
+name = "libfuzzer-sys"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "336244aaeab6a12df46480dc585802aa743a72d66b11937844c61bbca84c991d"
+dependencies = [
+ "arbitrary",
+ "cc",
+ "once_cell",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.88"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebd69e719f31e88618baa1eaa6ee2de5c9a1c004f1e9ecdb58e8352a13f20a01"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.88"
+source = "git+https://github.com/Nilstrieb/syn?branch=arbitrary#678493490de7c50b79b9461df9a67a22d43e5200"
+dependencies = [
+ "arbitrary",
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 0000000..8d4c181
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name = "fuzz-rustc-ast-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+
+[dependencies.fuzz-rustc-ast]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "ast"
+path = "fuzz_targets/ast.rs"
+test = false
+doc = false
diff --git a/fuzz/fuzz_targets/ast.rs b/fuzz/fuzz_targets/ast.rs
new file mode 100644
index 0000000..a900283
--- /dev/null
+++ b/fuzz/fuzz_targets/ast.rs
@@ -0,0 +1,8 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+use fuzz_rustc_ast::RustCode;
+
+fuzz_target!(|_data: RustCode| {
+    // fuzzed code goes here
+});
diff --git a/run.sh b/run.sh
new file mode 100644
index 0000000..5f9ebce
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# from the amazing https://github.com/dwrensha/fuzz-rustc
+
+set -e
+set -x
+
+if [ ! -d rust ]; then
+    git clone https://github.com/dwrensha/rust.git --branch fuzz
+fi
+
+
+rustup override set nightly
+
+# - enable coverage instrumentation
+export RUSTFLAGS="$RUSTFLAGS -C passes=sancov-module -C llvm-args=-sanitizer-coverage-level=4"
+export RUSTFLAGS="$RUSTFLAGS -C llvm-args=-sanitizer-coverage-trace-compares"
+export RUSTFLAGS="$RUSTFLAGS -C llvm-args=-sanitizer-coverage-inline-8bit-counters"
+export RUSTFLAGS="$RUSTFLAGS -C llvm-args=-sanitizer-coverage-pc-table"
+
+# - enable compilation of rustc_private crates
+export RUSTFLAGS="$RUSTFLAGS -Z force-unstable-if-unmarked"
+
+# - work around https://github.com/rust-fuzz/cargo-fuzz/issues/161
+export RUSTFLAGS="$RUSTFLAGS -C codegen-units=1"
+
+# - enable debug assertions
+export RUSTFLAGS="$RUSTFLAGS -C debug-assertions=on"
+
+#export RUSTFLAGS="$RUSTFLAGS -Z sanitizer=address"
+
+# Create seed directory if it does not exist. Add example files here.
+mkdir -p seeds
+
+# Create corpus directory which the fuzzer will fill with interesting inputs.
+mkdir -p corpus
+
+# Create artifact output directory.
+mkdir -p artifacts
+
+# Detect the target.
+if [ "$(uname -s)" == "Darwin" ]; then
+    export TARGET="x86_64-apple-darwin"
+elif [ "$(uname -s)" == "Linux" ]; then
+    export TARGET="x86_64-unknown-linux-gnu"
+else
+    echo "Sorry, currently only Mac OS and Linux are supported"
+    exit 1
+fi
+
+# This variable tells the new rustc (i.e. the one we're compiling) what version it
+# should consider itself to have. This is used when loading precompiled libstd and other
+# crates. If the rustc version recorded in those crates' metadata does not match this,
+# then the compiler quits early.
+export CFG_VERSION=`rustc --version | cut -f2- -d ' '`
+
+# Usually we can use the precompiled libstd from rustup.
+TOOLCHAIN_ROOT=${RUSTUP_BASE:-$HOME/.rustup}/toolchains/nightly-$TARGET
+
+# If a metadata change has landed on master and is not yet in a nightly release,
+# we may need to compile our own libstd. `./x.py build --stage 1` should suffice.
+# If fuzzing immediately fails on an empty input, this is a good thing to try.
+# (Note that you will also need to change CFG_VERSION, above.)
+#TOOLCHAIN_ROOT=$HOME/src/rust/build/x86_64-unknown-linux-gnu/stage1/
+
+# Custom environment variable indicating where to look for the precompiled libstd.
+export FUZZ_RUSTC_LIBRARY_DIR=$TOOLCHAIN_ROOT/lib/rustlib/$TARGET/lib
+
+# Set some environment variables that are needed when building the rustc source code.
+export CFG_COMPILER_HOST_TRIPLE=$TARGET
+export CFG_RELEASE_CHANNEL=nightly
+export CFG_RELEASE=unknown
+export REAL_LIBRARY_PATH_VAR=foobar
+
+# Any writable location will do for this one.
+export RUSTC_ERROR_METADATA_DST=/tmp/rustc_error_metadata
+
+export RUSTC_INSTALL_BINDIR=/tmp/rustc_install_bindir
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..236ce73
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,18 @@
+use arbitrary::{Arbitrary, Unstructured};
+
+#[derive(Debug)]
+pub struct RustCode(pub String);
+
+impl<'a> Arbitrary<'a> for RustCode {
+    fn arbitrary(u: &mut Unstructured<'a>) -> arbitrary::Result<Self> {
+        let ast = syn::Item::arbitrary(u)?;
+
+        let tokens = quote::quote! { #ast };
+
+        Ok(RustCode(tokens.to_string()))
+    }
+
+    fn size_hint(_depth: usize) -> (usize, Option<usize>) {
+        (5, Some(10))
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index 04a95d0..ce98322 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,24 @@
+use anyhow::Context;
 use arbitrary::Arbitrary;
 use std::path::PathBuf;
 
-fn main() {
-    let data = std::fs::read(PathBuf::from(file!()).parent().unwrap().join("Cargo.toml")).unwrap();
+fn main() -> anyhow::Result<()> {
+    let path = PathBuf::from(file!())
+        .parent()
+        .unwrap()
+        .parent()
+        .unwrap()
+        .join("Cargo.toml");
+    let data = std::fs::read(&path).context(path.display().to_string())?;
+
+    // %%% G% GGGG   �
     let mut unstructured = arbitrary::Unstructured::new(&data);
 
-    let ast = syn::Item::arbitrary(&mut unstructured);
+    let ast = syn::Item::arbitrary_take_rest(unstructured).context("from arbitrary")?;
 
-    println!("{ast}");
+    let tokens = quote::quote! { #ast };
+
+    println!("{tokens}");
+
+    Ok(())
 }