Interactive Build an App Lesson 3: make the three ship decisions (hosting, database, access) and run a safe-launch checklist, with an AI Coach.
Build an App · Lesson 3 Pro+  ~16 min · Advanced
Pro+

Ship it for your team — hosting, accounts, and your data.

Your tool has run in your browser, for you. This lesson makes it real for everyone else: hosted online, backed by a database so data survives and is shared, gated behind logins where it matters, and connected to the data you already have. The coding AI does the heavy lifting — you describe what you want.

The mental model

A tool people rely on needs to live somewhere, keep its data safely, and let the right people in.

Everything so far ran in your browser for you alone. To make a tool your team uses, three things change: it gets hosted online, its data goes into a real database that survives and is shared, and — when needed — it sits behind a login. A coding AI handles all of it; you describe what you want.

Step 01 · Make the three ship decisions

Shipping a personal tool to a team is really three decisions. Pick the right call for an internal tool that holds real data — each reveals the prompt to make it happen.

1 · Where does it live?
2 · Where does the data go?
3 · Who gets in?
Then connect it to your world. The real payoff is plugging the tool into a spreadsheet, your CRM, a calendar, or an API. Prompt: "Connect this to [source]. When [event], read or write [what]. Start read-only so nothing changes by accident, and tell me how to authorize the connection."

Step 02 · Going live, safely — run the checklist

Before you roll it out, tick off the safe-launch checklist:

Test the whole flow with one real teammate
Before the wider rollout.
Confirm data is backed up
Ask the AI how backups work on your platform.
Keep a way to roll back
If an update breaks something.
Lock down sensitive data behind access controls
See the "Secure Your AI Use" build to do this responsibly.
🚀 Safe to roll out — share access with the team.
The moment a tool holds real data behind a login, security matters. Don't put sensitive customer or financial data into a tool without proper access controls.

Your challenge: put it in someone else's hands

  1. Deploy it to a real URL on a hosting platform.
  2. Move its data into a real database so it persists.
  3. Add a login and share access with one teammate.
  4. Connect it to one existing source (a sheet or app), read-only.

Build an App — complete

You can turn a manual task into a working tool, then into a real internal app your team relies on — hosted, with a database, logins, and a connection to your existing data. Ready for the next one?

Next build

Build an AI Agent — delegate work, don't just chat

🎓
AI Coach
Ask anything about this lesson
Hey! I'm your AI Coach for this lesson. Ask me anything about hosting your tool, giving it a database, adding logins, or connecting it to your data. What's on your mind?
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