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+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "zerocopy"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1702d9583232ddb9174e01bb7c15a2ab8fb1bc6f227aa1233858c351a3ba0cb"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28a6e20d751156648aa063f3800b706ee209a32c0b4d9f24be3d980b01be55ef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..dba455b
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "archiver"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1.0.98"
+axum = { version = "0.8.4", features = ["ws"] }
+env_logger = "0.11.8"
+log = "0.4.27"
+markup = "0.15.0"
+serde = { version = "1.0.219", features = ["derive"] }
+serde_json = "1.0.140"
+serde_yml = "0.0.12"
+tokio = { version = "1.45.0", features = ["full"] }
+futures = "0.3.31"
diff --git a/scripts/ytdlp_download.ts b/scripts/ytdlp_download.ts
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/scripts/ytdlp_download.ts
diff --git a/scripts/ytdlp_flatten.ts b/scripts/ytdlp_flatten.ts
new file mode 100644
index 0000000..f2eaa65
--- /dev/null
+++ b/scripts/ytdlp_flatten.ts
@@ -0,0 +1,12 @@
+
+
+const ws = new WebSocket(Deno.args[0])
+
+ws.onerror = () => console.error("ws error")
+ws.onclose = () => console.error("ws closed")
+ws.onopen = () => {
+    ws.send(JSON.stringify({ t: "register", name: "yt-dlp playlist flattener", sources: ["ytdlp-flatten"] }))
+}
+ws.onmessage = ev => {
+    console.log(ev.data);
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..a08ae6b
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,78 @@
+pub mod ui;
+pub mod worker_ws;
+
+use anyhow::Result;
+use axum::{Router, routing::get};
+use serde_json::{Map, Value};
+use std::{
+    collections::{HashMap, HashSet},
+    sync::Arc,
+};
+use tokio::{
+    fs::{File, read_to_string, rename},
+    io::AsyncWriteExt,
+    net::TcpListener,
+    sync::{RwLock, mpsc::Sender},
+};
+use worker_ws::{WorkerID, WorkerResponse, worker_websocket};
+
+struct Worker {
+    accept: usize,
+    name: String,
+    sources: Vec<String>,
+    send: Sender<WorkerResponse>,
+}
+
+#[derive(Default)]
+struct State {
+    worker_id_counter: WorkerID,
+    workers: HashMap<WorkerID, Worker>,
+
+    metadata: HashMap<String, Map<String, Value>>,
+    queue: HashSet<String>,
+    loading: HashSet<String>,
+    complete: HashSet<String>,
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::init_from_env("LOG");
+    let mut state = State::default();
+    state.load().await?;
+    let router = Router::new()
+        .route("/", get(async || "Hello world!"))
+        .route("/worker_ws", get(worker_websocket))
+        .with_state(Arc::new(RwLock::new(state)));
+    let listener = TcpListener::bind("127.0.0.1:8080").await?;
+    axum::serve(listener, router).await?;
+    Ok(())
+}
+
+impl State {
+    pub async fn load(&mut self) -> Result<()> {
+        self.metadata = serde_json::from_str(&read_to_string("metadata.json").await?)?;
+        self.queue = serde_json::from_str(&read_to_string("queue.json").await?)?;
+        self.complete = serde_json::from_str(&read_to_string("complete.json").await?)?;
+        Ok(())
+    }
+    pub async fn save(&mut self) -> Result<()> {
+        File::create("metadata.json~")
+            .await?
+            .write_all(&serde_json::to_vec(&self.metadata)?)
+            .await?;
+        File::create("queue.json~")
+            .await?
+            .write_all(&serde_json::to_vec(&self.queue)?)
+            .await?;
+        File::create("complete.json~")
+            .await?
+            .write_all(&serde_json::to_vec(&self.complete)?)
+            .await?;
+
+        rename("metadata.json~", "metadata.json").await?;
+        rename("queue.json~", "queue.json").await?;
+        rename("complete.json~", "complete.json").await?;
+
+        Ok(())
+    }
+}
diff --git a/src/ui.rs b/src/ui.rs
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/ui.rs
diff --git a/src/worker_ws.rs b/src/worker_ws.rs
new file mode 100644
index 0000000..f645c11
--- /dev/null
+++ b/src/worker_ws.rs
@@ -0,0 +1,169 @@
+use crate::{State, Worker};
+use anyhow::{Result, bail};
+use axum::{
+    extract::{
+        State as S, WebSocketUpgrade,
+        ws::{Message, WebSocket},
+    },
+    response::IntoResponse,
+};
+use futures::{SinkExt, StreamExt};
+use log::warn;
+use serde::{Deserialize, Serialize};
+use serde_json::{Map, Value};
+use std::sync::Arc;
+use tokio::{
+    spawn,
+    sync::{RwLock, mpsc::channel},
+};
+
+pub type WorkerID = u64;
+
+#[derive(Debug, Deserialize)]
+#[serde(tag = "t", rename_all = "snake_case")]
+pub enum WorkerRequest {
+    Register {
+        name: String,
+        sources: Vec<String>,
+    },
+    Metadata {
+        key: String,
+        data: Map<String, Value>,
+    },
+    Enqueue {
+        key: String,
+    },
+    Complete {
+        key: String,
+    },
+    Accept,
+
+    _EchoError {
+        message: String,
+    },
+}
+
+#[derive(Debug, Serialize)]
+#[serde(tag = "t", rename_all = "snake_case")]
+pub enum WorkerResponse {
+    Ok,
+    Work {
+        key: String,
+        data: Map<String, Value>,
+    },
+    Error {
+        message: String,
+    },
+}
+
+pub(crate) async fn worker_websocket(
+    ws: WebSocketUpgrade,
+    S(state): S<Arc<RwLock<State>>>,
+) -> impl IntoResponse {
+    ws.on_upgrade(|ws| worker_websocket_inner(ws, state))
+}
+async fn worker_websocket_inner(ws: WebSocket, state: Arc<RwLock<State>>) {
+    let (mut send, mut recv) = ws.split();
+    let (tx, mut rx) = channel(16);
+
+    let worker = {
+        let mut g = state.write().await;
+        let id = g.worker_id_counter;
+        g.worker_id_counter += 1;
+        g.workers.insert(
+            id,
+            Worker {
+                send: tx,
+                accept: 0,
+                name: "unknown".to_string(),
+                sources: vec![],
+            },
+        );
+        id
+    };
+
+    let mut send_task = spawn(async move {
+        while let Some(m) = rx.recv().await {
+            if let Err(e) = send
+                .send(Message::Text(serde_json::to_string(&m).unwrap().into()))
+                .await
+            {
+                warn!("error sending response: {e:?}");
+                break;
+            }
+        }
+    });
+    let mut recv_task = spawn(async move {
+        while let Some(message) = recv.next().await {
+            if let Ok(m) = message {
+                match m {
+                    Message::Text(t) => {
+                        let req = match serde_json::from_str::<WorkerRequest>(t.as_str()) {
+                            Ok(v) => v,
+                            Err(e) => {
+                                warn!("error parsing request: {e:?}");
+                                WorkerRequest::_EchoError {
+                                    message: format!("{e:#}"),
+                                }
+                            }
+                        };
+                        if let Err(e) = state.write().await.handle_worker_message(worker, req) {
+                            warn!("error processing request: {e:?}");
+                            state.write().await.send_to_worker(
+                                worker,
+                                WorkerResponse::Error {
+                                    message: format!("{e:?}"),
+                                },
+                            );
+                        }
+                    }
+                    _ => (),
+                }
+            }
+        }
+    });
+
+    tokio::select! {
+        _ = &mut send_task => recv_task.abort(),
+        _ = &mut recv_task => send_task.abort(),
+    };
+}
+
+impl State {
+    pub fn send_to_worker(&mut self, w: WorkerID, resp: WorkerResponse) {
+        if let Err(_) = self.workers[&w].send.try_send(resp) {
+            warn!("worker ws response overflow");
+        }
+    }
+    pub fn handle_worker_message(&mut self, w: WorkerID, req: WorkerRequest) -> Result<()> {
+        let worker = self.workers.get_mut(&w).unwrap();
+        match req {
+            WorkerRequest::Register { name, sources } => {
+                worker.name = name;
+                worker.sources = sources;
+            }
+            WorkerRequest::Metadata { key, data } => {
+                let m = self.metadata.entry(key).or_default();
+                m.extend(data);
+            }
+            WorkerRequest::Enqueue { key } => {
+                self.queue.insert(key);
+            }
+            WorkerRequest::Complete { key } => {
+                if self.loading.remove(&key) {
+                    self.complete.insert(key);
+                } else {
+                    bail!("was not loading")
+                }
+            }
+            WorkerRequest::Accept => {
+                worker.accept += 1;
+            }
+            WorkerRequest::_EchoError { message } => {
+                self.send_to_worker(w, WorkerResponse::Error { message });
+            }
+        }
+
+        Ok(())
+    }
+}