The database at the
edge of everything.

CREATE TABLE orders (id BIGINT PRIMARY KEY, total NUMERIC(12,2));
INSERT INTO orders VALUES (1, 4200.00), (2, 1337.00);

-- Online migration: no rewrite, no locks, no downtime.
ALTER TABLE orders ADD COLUMN status TEXT NOT NULL;
CREATE UNIQUE INDEX CONCURRENTLY ON orders (id, status);

-- A branch per experiment, in 0 ms.
CREATE BRANCH pricing_test;
CHECKOUT pricing_test;

ASK 'how did revenue trend last quarter?';

-- Schema-less: any format, auto-detected and validated.
PUT 'user:42' = '{"name": "Ada", "roles": ["admin"]}';
PUT 'config' = $$
[db]
host = "abyss.internal"
port = 5432
$$;

-- Native nested key-value pairs, addressed by path.
PUT 'cart' = {items: [{sku: 'A1', qty: 2}], paid: false};
PUT 'config'.db.port = 5433;
GET 'config'.db.host;

-- For the enterprise: XML. For everyone else: Morse.
PUT 'sos' = '... --- ...';

$ abyssdb serve --tls
$ psql "postgresql://you@localhost/abyss?sslmode=require"
NOTICE:  welcome to AbyssDB, you. Nobody can access your data.
abyss=> SELECT id, total FROM orders WHERE total > 1000;
 id | total
----+-------
(0 rows)

Time: 0.115 ms

conn, _ := pgx.Connect(ctx, "postgres://you@localhost/abyss?sslmode=require")
conn.Exec(ctx, "INSERT INTO accounts (id, balance) VALUES ($1, $2)", 1, 100)

var balance int
err := conn.QueryRow(ctx,
    "SELECT balance FROM accounts WHERE id = $1", 1).Scan(&balance)
// Exactly as documented.

{
  "mcpServers": {
    "abyssdb": {
      "command": "abyssdb",
      "args": ["mcp", "--shards", "4", "--nodes", "3"]
    }
  }
}

#![forbid(unsafe_code)]
use abyss_core::{encode_adf, Device, Void};

fn main() -> std::io::Result<()> {
    let mut dev = Void::open()?;
    dev.write(&encode_adf(&["1", "Our Biggest Client"]));
    dev.fsync();
    assert!(dev.read_all().is_empty()); // exact
    Ok(())
}