Aizu - Real-time Backend at Ludicrous Speed

how it works

Define once. Type everywhere.

01

Define your schema in TOML

One file defines your collections, types, and auth. We generate Rust for your backend and TypeScript for your frontend.

schema.toml

[collections.task]
title = "string"
done = "bool"
user_id = "ref:User"

[auth]
enabled = true
methods = ["email", "github"]

02

Write functions in Rust

Use auto-generated types. Auth is built-in with ctx.auth.user. Functions compile to WASM and run inside the database.

backend/src/lib.rs

#[query]
pub fn my_tasks(ctx: &Ctx, user: AuthUser) -> Vec<Task> {
    ctx.db.query::<Task>()
        .filter(Task::user_id().eq(user.id))
        .collect()
}

03

Build reactive frontends

Import the generated SDK. Queries are live subscriptions that sync in real-time across all clients.

frontend/src/App.tsx

const { data: tasks } = useQuery("my_tasks");

return (
  <ul>
    {tasks?.map(task => (
      <li key={task._id}>{task.title}</li>
    ))}
  </ul>
);

04

Deploy with one command

Compile, deploy, sync, and generate — all in one step.

$ deploy

Building WebAssembly...
  Compiling backend v0.1.0
    Finished release [optimized]

Deploying...
  Uploading functions ✓
  Syncing database schema ✓
  Generating TypeScript SDK ✓

✓ Deployed successfully

features

Built for modern apps

01

End-to-End Types

Define in TOML, get Rust + TypeScript. No more API mismatches.

02

Built-in Auth

OAuth, magic links, sessions — configured in schema. Access with ctx.auth.user.

03

Real-time Sync

Every query is a live subscription. Updates propagate instantly.

04

WASM Speed

Cold starts under 1ms. 100x faster than Node.

05

One Command

Compile, deploy, sync, generate. No containers. No YAML.

aizu.sh

limited alpha

Join the Alpha

Be the first to build with Aizu.

free during alpha no credit card

Real-time backend at ludicrous speed