diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..d0c600a
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,135 @@
+[workspace]
+resolver = "2"
+members = [
+    "crates/chattyness-db",
+    "crates/chattyness-error",
+    "crates/chattyness-shared",
+    "crates/chattyness-admin-ui",
+    "crates/chattyness-user-ui",
+    "apps/chattyness-owner",
+    "apps/chattyness-app",
+]
+exclude = ["chattyness-webserver"]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2024"
+license = "MIT"
+repository = "https://github.com/your-org/chattyness"
+
+[workspace.dependencies]
+# Internal crates
+chattyness-db = { path = "crates/chattyness-db" }
+chattyness-error = { path = "crates/chattyness-error" }
+chattyness-shared = { path = "crates/chattyness-shared" }
+chattyness-admin-ui = { path = "crates/chattyness-admin-ui" }
+chattyness-user-ui = { path = "crates/chattyness-user-ui" }
+
+# Leptos framework
+leptos = "0.8"
+leptos_meta = "0.8"
+leptos_router = "0.8"
+leptos_axum = "0.8"
+
+# Axum web server
+axum = { version = "0.8", features = ["macros", "ws"] }
+axum-extra = { version = "0.10", features = ["multipart"] }
+tower = "0.5"
+tower-http = { version = "0.6", features = ["fs", "compression-gzip"] }
+
+# Session management
+tower-sessions = "0.14"
+tower-sessions-sqlx-store = { version = "0.15", features = ["postgres"] }
+
+# Database
+sqlx = { version = "0.8", features = [
+    "runtime-tokio",
+    "tls-rustls",
+    "postgres",
+    "uuid",
+    "chrono",
+    "json"
+] }
+
+# Serialization
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+# Error handling
+thiserror = "2"
+
+# CLI
+clap = { version = "4", features = ["derive", "env"] }
+
+# Async runtime
+tokio = { version = "1", features = ["full"] }
+futures = "0.3"
+
+# Concurrent data structures
+dashmap = "6"
+
+# Configuration
+toml = "0.8"
+
+# Utilities
+uuid = { version = "1", features = ["v4", "serde", "js"] }
+chrono = { version = "0.4", features = ["serde"] }
+dotenvy = "0.15"
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+http = "1"
+regex = "1"
+
+# Password hashing
+argon2 = "0.5"
+
+# Image processing
+image = { version = "0.25", default-features = false, features = ["jpeg", "png", "gif", "webp"] }
+reqwest = { version = "0.12", default-features = false, features = ["rustls-tls", "json"] }
+
+# Random token generation
+rand = "0.8"
+sha2 = "0.10"
+hex = "0.4"
+
+# WASM dependencies
+console_error_panic_hook = "0.1"
+wasm-bindgen = "0.2"
+gloo-net = "0.6"
+gloo-timers = "0.3"
+urlencoding = "2"
+web-sys = { version = "0.3", features = [
+    "Blob",
+    "CanvasRenderingContext2d",
+    "CloseEvent",
+    "Document",
+    "DomRect",
+    "Element",
+    "ErrorEvent",
+    "EventTarget",
+    "File",
+    "FileList",
+    "FormData",
+    "HtmlCanvasElement",
+    "HtmlCollection",
+    "HtmlElement",
+    "HtmlFormElement",
+    "HtmlImageElement",
+    "HtmlInputElement",
+    "ImageData",
+    "KeyboardEvent",
+    "Location",
+    "MessageEvent",
+    "MouseEvent",
+    "Node",
+    "Storage",
+    "TextMetrics",
+    "WebSocket",
+    "Window",
+] }
+js-sys = "0.3"
+
+[profile.release]
+lto = true
+opt-level = 'z'
+codegen-units = 1