docs: add readme

README.md

@@ -0,0 +1,107 @@
+# 🧊 nodrop
+
+**`nodrop`** is a simple, composable async drop queue for Rust — built to run queued tasks in FIFO order and ensure graceful shutdown via draining. It's useful in lifecycle-managed environments (e.g., `notmad`) or as a lightweight alternative until async drop is stabilized in Rust.
+
+> 💡 Tasks are executed one at a time. If the queue is marked for draining, no further items can be added.
+
+---
+
+## ✨ Features
+
+* Assign one-off async tasks (closures) to a queue
+* FIFO task processing
+* Draining mechanism to flush the queue before shutdown
+* Optional integration with [`notmad`](https://crates.io/crates/notmad) for graceful component lifecycle control
+* `Send + Sync + 'static` guaranteed
+
+---
+
+## 🚀 Usage
+
+### Add to `Cargo.toml`
+
+```toml
+[dependencies]
+nodrop = { git = "https://github.com/kjuulh/nodrop" }
+```
+
+### Enable `notmad` integration (optional)
+
+```toml
+[dependencies]
+nodrop = { git = "https://github.com/kjuulh/nodrop", features = ["notmad"] }
+```
+
+---
+
+## 🛠 Example
+
+```rust
+use nodrop::DropQueue;
+use tokio::sync::oneshot;
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let queue = DropQueue::new();
+
+    let (tx, rx) = oneshot::channel();
+
+    queue.assign(|| async move {
+        println!("Running closure task");
+        tx.send(()).unwrap();
+        Ok(())
+    })?;
+
+    queue.process_next().await?;
+
+    rx.await?;
+
+    Ok(())
+}
+```
+
+---
+
+## 🔁 Lifecycle with `notmad`
+
+If using the [`notmad`](https://crates.io/crates/notmad) lifecycle framework:
+
+```rust
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let queue = nodrop::DropQueue::new();
+    let app = notmad::Mad::new().add(queue);
+    app.run().await?;
+    Ok(())
+}
+```
+
+This will process tasks until the cancellation token is triggered, e.g., via SIGINT.
+
+---
+
+## 🔒 Drain Mode
+
+You can signal the queue to stop accepting new items and finish processing the current ones:
+
+```rust
+queue.drain().await?;
+```
+
+After this call, any further `assign()` will panic.
+
+---
+
+## 🧪 Tests
+
+Run the test suite using:
+
+```bash
+cargo test
+```
+
+---
+
+## 📜 License
+
+MIT 

crates/nodrop/src/lib.rs

@@ -107,13 +107,17 @@ impl DropQueue {
         loop {
             tokio::select! {
                 _ = cancellation_token.cancelled() => {
-                    return Ok(())
+                    break;
                 },
                 res = self.process_next() => {
                     res?;
                 }
             }
         }
+
+        self.drain().await?;
+
+        Ok(())
     }
 }