diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7ea9a05
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,44 @@
+# --- Node.js / Svelte ---
+node_modules/
+dist/
+src/module_bindings/
+.wrangler/
+.env
+.env.*
+!.env.example
+
+# --- Rust / Cargo (Backend & Tauri) ---
+spacetimedb/target/
+src-tauri/target/
+src-tauri/gen/
+Cargo.lock
+# (Keep spacetimedb/Cargo.lock as it's part of the module deployment)
+
+# --- SpacetimeDB Local State ---
+.spacetime/
+
+# --- IDEs / Editors ---
+.vscode/
+.idea/
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+.direnv/
+
+# --- OS Specific ---
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# --- Build / Temporary ---
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+.svelte-kit/
+.vercel/
+.netlify/
+build/