Builder Toolkit

What this is

Builder Toolkit is the reference layer for the technical foundations underneath your builds: your editor, Node, GitHub, deployment, secrets, domains, databases, and login.

It is not a course. You do not finish it. You open the page you need, do the one thing it asks, and go back to building.

The one idea

KDBM Lite teaches you the method. Builder Toolkit explains the machinery that method runs on.

Why it matters

After one guided build, most learners can ship something but cannot yet say what actually happened.

You typed npm install without knowing what it downloaded. You pushed to GitHub without knowing what a commit is. You added a key to a file and nobody explained why that file must never be uploaded.

That gap is fine on day one. It becomes expensive on day thirty, when a deploy fails and every fix looks like guessing.

What to do

Enter where you are blocked

You do not read this top to bottom. Find your situation:

Your situation	Start here
No editor set up yet	IDE Setup
Commands like `npm install` are unclear	Node and npm
Code lives only on your laptop	GitHub Basics
Worried you pushed something private	Gitignore and Secrets
Need the project online	Vercel Basics
Works locally, breaks when deployed	Environment Variables
Want your own web address	Domains and DNS
About to share the link publicly	Deployment QA
App needs to save data	Supabase Basics
App needs user login	OAuth Basics

Understand the ladder

The pages are ordered as a real dependency chain, not alphabetically:

Copy

Editor → Node → GitHub → Secrets → Deploy → Env vars → Domain → QA → Database → Login

Each rung assumes the ones before it. You need an editor before npm means anything, a repository before you can deploy, and a working deploy before a domain or a database is worth attempting.

Do this now

Read the ladder above and name the highest rung you have actually done yourself, without help. That is where you start.

Check yourself

I know this is a reference, not a course I must complete.
I can name the rung I am currently on.
I know KDBM Lite stays the main path, and this layer supports it.

If something is broken right now

This section explains and sets up. It does not repair. For a build that is currently failing, go to Troubleshooting and come back afterwards.

Common mistakes

Reading all ten pages before building anything. The foundations only stick once you have hit the problem.
Skipping to Supabase or OAuth before a plain site deploys successfully.
Treating this as required homework. It is a toolbox, not a syllabus.
Looking for fixes here. Fixes live in Troubleshooting.

Next step

Start at the bottom rung: IDE Setup.