diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..aa3a4ad
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+{
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "rust-lang.rust"
+}
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..b5bcfae
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,241 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "cc"
+version = "1.0.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "clone-shim"
+version = "0.1.0"
+dependencies = [
+ "env_logger",
+ "libc",
+ "log",
+ "nix",
+ "thiserror",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
+dependencies = [
+ "atty",
+ "humantime",
+ "log",
+ "regex",
+ "termcolor",
+]
+
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
+[[package]]
+name = "libc"
+version = "0.2.117"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e74d72e0f9b65b5b4ca49a346af3976df0f9c61d550727f349ecd559f251a26c"
+
+[[package]]
+name = "log"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "nix"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
+[[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 = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "syn"
+version = "1.0.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a65b3f4ffa0092e9887669db0eae07941f023991ab58ea44da8fe8e2d511c6b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "termcolor"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..1c80731
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "clone-shim"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+log = "0.4"
+env_logger = "0.9"
+thiserror = "1"
+
+libc = "0.2.117"
+nix = "0.23.1"
diff --git a/src/clone.rs b/src/clone.rs
new file mode 100644
index 0000000..10167b6
--- /dev/null
+++ b/src/clone.rs
@@ -0,0 +1,130 @@
+use std::fs::File;
+use std::marker::PhantomData;
+use std::os::unix::io::{AsRawFd, FromRawFd, RawFd};
+
+use libc::{pid_t, syscall, SYS_clone3};
+use nix::errno::Errno;
+pub use nix::sched::CloneFlags;
+use nix::sys::signal::Signal;
+use nix::unistd::Pid;
+
+pub struct CloneArgs<'a> {
+    pub flags: CloneFlags,
+
+    pub pidfd: Option<&'a mut File>,
+    pidfd_int: RawFd,
+
+    pub child_tid: Option<&'a mut Pid>,
+    child_tid_int: pid_t,
+
+    pub parent_tid: Option<&'a mut Pid>,
+    parent_tid_int: pid_t,
+
+    pub exit_signal: Option<Signal>,
+
+    pub stack: Option<&'a mut [u8]>,
+    pub set_tid: Option<&'a [Pid]>,
+    pub cgroup: Option<&'a File>,
+}
+
+#[repr(C)]
+struct CloneArgsInternal<'a> {
+    flags: u64,
+    pidfd: u64,
+    child_tid: u64,
+    parent_tid: u64,
+    exit_signal: u64,
+    stack: u64,
+    stack_size: u64,
+    tls: u64,
+    set_tid: u64,
+    set_tid_size: u64,
+    cgroup: u64,
+
+    phantom: PhantomData<&'a ()>,
+}
+
+impl<'a: 'b, 'b: 'c, 'c> CloneArgs<'a> {
+    pub fn new(flags: CloneFlags) -> CloneArgs<'a> {
+        CloneArgs {
+            flags,
+
+            pidfd: None,
+            pidfd_int: 0,
+
+            child_tid: None,
+            child_tid_int: 0,
+
+            parent_tid: None,
+            parent_tid_int: 0,
+
+            exit_signal: None,
+
+            stack: None,
+            set_tid: None,
+            cgroup: None,
+        }
+    }
+
+    fn process(&'b mut self) -> CloneArgsInternal<'c> {
+        CloneArgsInternal {
+            flags: self.flags.bits() as u64,
+            pidfd: self
+                .pidfd
+                .as_ref()
+                .map(|_| (self.pidfd_int) as *mut RawFd as u64)
+                .unwrap_or(0),
+            child_tid: self
+                .child_tid
+                .as_ref()
+                .map(|_| self.child_tid_int as *mut pid_t as u64)
+                .unwrap_or(0),
+            parent_tid: self
+                .parent_tid
+                .as_ref()
+                .map(|_| self.parent_tid_int as *mut pid_t as u64)
+                .unwrap_or(0),
+            exit_signal: self.exit_signal.map(|s| s as i32 as u64).unwrap_or(0),
+            stack: self
+                .stack
+                .as_mut()
+                .map(|s| s.as_mut_ptr() as u64)
+                .unwrap_or(0),
+            stack_size: self.stack.as_ref().map(|s| s.len() as u64).unwrap_or(0),
+            tls: 0,
+            set_tid: self
+                .set_tid
+                .as_ref()
+                .map(|s| s.as_ptr() as u64)
+                .unwrap_or(0),
+            set_tid_size: self.set_tid.as_ref().map(|s| s.len() as u64).unwrap_or(0),
+            cgroup: self.cgroup.map(|c| c.as_raw_fd() as u64).unwrap_or(0),
+
+            phantom: PhantomData,
+        }
+    }
+
+    fn finalise(&mut self) {
+        if let Some(r) = &mut self.pidfd {
+            **r = unsafe { File::from_raw_fd(self.pidfd_int) };
+        }
+        if let Some(r) = &mut self.child_tid {
+            **r = Pid::from_raw(self.child_tid_int);
+        }
+        if let Some(r) = &mut self.parent_tid {
+            **r = Pid::from_raw(self.parent_tid_int);
+        }
+    }
+}
+
+pub fn clone3(mut args: CloneArgs) -> nix::Result<Pid> {
+    let args_int: CloneArgsInternal = args.process();
+
+    let result = unsafe { syscall(SYS_clone3, &args_int, std::mem::size_of_val(&args_int)) };
+
+    let out = Errno::result(result).map(|p| Pid::from_raw(p as i32))?;
+
+    args.finalise();
+
+    Ok(out)
+}
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..83b5e76
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,7 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("{msg}: {src}")]
+    Nix { msg: &'static str, src: nix::Error },
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..fe7890f
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,28 @@
+use log::info;
+
+mod clone;
+mod error;
+
+use clone::{clone3, CloneArgs, CloneFlags};
+use error::Error;
+
+use nix::unistd::Pid;
+
+fn main() -> Result<(), Error> {
+    let env = env_logger::Env::new().filter_or("LOG", "info");
+    env_logger::init_from_env(env);
+
+    info!("getting started");
+
+    if clone3(CloneArgs::new(CloneFlags::empty())).map_err(|e| Error::Nix {
+        msg: "clone3",
+        src: e,
+    })? != Pid::from_raw(0)
+    {
+        info!("hello from the child");
+    } else {
+        info!("hello from the parent");
+    }
+
+    Ok(())
+}