BaseDeck Documentation

BaseDeck is a Progressive Web App that gives you a full Supabase management interface on your phone. No terminal. No laptop. No waiting until you are back at a desk.

This document covers every feature, the security model, and the architecture behind the app.

Installing BaseDeck

BaseDeck is a PWA — install it directly from your browser, no app store required.

Android (Chrome): open basedeck.netlify.app/dashboard, tap the three-dot menu, and select Add to Home Screen. The app launches full-screen from your home screen just like a native app.

iOS (Safari): open basedeck.netlify.app/dashboard in Safari, tap the Share button, and select Add to Home Screen. Chrome on iOS does not support PWA installation due to Apple restrictions — Safari is required.

Signing In

BaseDeck authenticates via your Supabase Personal Access Token — the same long-lived token the CLI uses. It authorises access to the Supabase Management API on your behalf.

To generate one: go to supabase.com → Dashboard → Account → Access Tokens and create a token. Paste it into BaseDeck's login screen. It is encrypted server-side immediately and stored only as ciphertext on your device.

Edge Functions

The Functions tab is the core of BaseDeck. Write, deploy, and manage Supabase Edge Functions without leaving your phone.

Single-file deployment

Write your Deno/TypeScript function in the built-in CodeMirror editor, set its name, and tap Deploy. BaseDeck bundles and uploads it to Supabase automatically.

Multi-file deployment

Use multi-file mode when your function imports shared utility files. Add your entry point and any shared modules — BaseDeck resolves import paths automatically before sending the bundle to Supabase's edge runtime.

Deploy log

Every deploy streams a timestamped log in real time. You see exactly what the server is processing, including any errors from the Supabase bundle endpoint.

Database Browser

The Database tab lists every table in your project's public schema. Tapping a table loads its rows via PostgREST, paginated at 50 rows per page with forward and back navigation.

SQL Editor

A full CodeMirror editor with SQL syntax highlighting, connected directly to your Supabase project via the /api/db proxy. You can run any valid Postgres query and results appear in a scrollable table.

Snippets let you save frequently used queries by name. History stores the last 20 queries you ran so you can reload them with a tap. Queries containing DROP, DELETE, TRUNCATE, or ALTER TABLE trigger a confirmation dialog before execution.

Invoking Functions

Tap any deployed function in the Functions list to open its detail view. Set the HTTP method, request body, and custom headers, then invoke the function and inspect the full response — status code, body, and round-trip time in milliseconds.

Token Security

Your Personal Access Token has full management access to your Supabase account. BaseDeck handles it as follows:

1. Your token is sent over HTTPS to a Netlify serverless function on login.
2. That function encrypts it with AES-256-GCM using a server-side ENCRYPTION_KEY environment variable that never leaves the server.
3. The encrypted ciphertext is returned to your device and stored in localStorage.
4. Every API call sends the ciphertext. The server decrypts it on demand and proxies the request — the raw token is never accessible to the browser after initial login.

PIN Lock

Every cold start requires your 4-digit PIN before any project data or controls become visible. You set the PIN during first launch and can change it from Settings at any time.

After 5 wrong attempts, the app wipes the stored encrypted token and returns to the login screen — protecting against brute-force access on a lost device.

Tech Stack

BaseDeck is intentionally lean — no frameworks, no build tools, no frontend dependencies beyond CodeMirror loaded via CDN.

API Proxying

All Supabase API calls go through Netlify serverless functions — never directly from the browser. This keeps your decrypted token entirely server-side and out of browser network inspection tools.

• /api/auth — encrypts or decrypts tokens with AES-256-GCM
• /api/proxy — forwards calls to the Supabase Management API
• /api/db — handles SQL execution and PostgREST row reads
• /api/bundle — edge function that packages and deploys functions to Supabase
• /api/contact — relays contact form submissions via Google Apps Script