🚀 WEB APPLICATION DEVELOPMENT • OPENAI CODEX & GOOGLE ANTIGRAVITYStandard Tuition: ₦100,000 • Flexible 2-Part Payment Option Available
TrustStack AcademyTrustStack AcademySPECIALIZED PATHWAY
BEGINNER FRIENDLY • NO CODING BACKGROUND REQUIRED

Web Application Development
with OpenAI Codex & Google Antigravity

Learn to build web applications from the ground up with OpenAI Codex and Google Antigravity. Start with web fundamentals, then use AI coding agents to plan, develop, explain, test, and improve a complete project.

📚 12 Comprehensive Modules⏱️ ~60 Guided Learning Hours💰 Tuition: ₦100,000 (Flexible 2-Part Option)🎓 Self-Paced LMS Delivery
Official Certified Web Application Developer (CWAD) Career Badge - TrustStack Academy
🛡️ Official CWAD Career Badge
COURSE ORIENTATION & SCOPE

A Rigorous, Practical Journey for Beginners

You don't need prior programming experience or a computer science degree. We teach you foundational web mechanics, then guide you to direct AI coding agents to build a functional, real-world application.

🎯
Who This Course Is For

Aspiring software professionals, career switchers, entrepreneurs, and technical assistants who want to build real web applications from scratch without getting lost in overwhelming syntax.

🛠️
What You Will Build

A complete, responsive small-business service booking web application with service selection, client-side validation, interactive summary modals, API integration, and production hosting.

💻
Hardware & Internet Requirements

A working laptop or desktop (Windows, macOS, or Linux) with at least 8GB RAM, a modern browser (Chrome, Firefox, Edge), and steady internet access for running the cloud agents and LMS videos.

🔑
External Account Access (Free Tiers)

Learners use 100% zero-cost free tiers: Google Antigravity & AI Studio, OpenAI Codex, GitHub, and the Supabase Free Plan ($0/mo, no card required).

💡
100% Free-Tier & Zero Cloud Cost Policy for All Learners

You do NOT need any paid tool subscriptions or cloud hosting plans to complete this course. All exercises, prompt labs, and capstone requirements are engineered around zero-cost tiers: Google Antigravity / AI Studio (free standard Google account), OpenAI Codex (free tier at platform.openai.com), GitHub (free account at github.com/join), and Supabase (Free Tier at supabase.com/pricing with no credit card required). We also provide zero-cloud local mock services so you never incur unexpected charges.

MEASURABLE COMPETENCE

What You Will Be Able to Do by the End of This Course

Every module reinforces practical competence. You do not just watch; you direct, write specifications, inspect code, debug errors, and deploy working software.

1
Explain Web Application Mechanics

Articulate the clear differences between static sites and web apps, client-server HTTP request cycles, DNS routing, and hosting architecture.

2
Translate Ideas into Buildable Plans

Break down vague product ideas into structured user stories, wireframe schematics, feature lists, and realistic MVP project boundaries.

3
Direct AI Coding Agents with Precision

Give Codex and Antigravity scoped, high-context instructions using industry-standard prompt formats that prevent agent drift.

4
Structure Semantic HTML5 Pages

Write accessible, SEO-sound markup utilizing semantic elements, heading hierarchies, forms, and proper metadata.

5
Style Responsive Layouts with CSS3

Master the box model, Flexbox, CSS Grid, media queries, and design token scales across mobile and desktop viewports.

6
Program Interactive Logic with JavaScript

Command variables, conditions, functions, array methods, DOM event listeners, and dynamic client-side state manipulation.

7
Engineer Robust User Forms & Validation

Construct accessible forms with live field validation, custom error messaging, ARIA attributes, and friendly empty states.

8
Manage Version Control via Git & GitHub

Organise project repositories, make atomic commits, branch safely, resolve conflicts, and publish code to GitHub.

9
Connect Front Ends to APIs & JSON Back Ends

Fetch asynchronous JSON data, handle HTTP status codes, handle pending/error states, and parse server responses.

10
Grasp Database & Authentication Foundations

Understand relational tables, foreign keys, row-level security, auth sessions, and safe access boundaries without exposing credentials.

11
Audit Accessibility, Security & Production Deployment

Execute automated WCAG 2.1 AA audits, test keyboard focus, prevent OWASP Top 10 vulnerabilities, and deploy live to production.

STEP-BY-STEP INSTRUCTION

The 12-Module Curriculum (~60 Guided Hours)

Each module represents approximately 5 guided learning hours combining open video lectures, interactive concepts, AI prompt labs, and hands-on deliverables.

MODULE 01⏱️ ~5 Guided Hours
Understanding the Web and Web Applications

KEY TOPICS COVERED:
Web ApplicationClient (Front End)Server (Back End)HTTP / HTTPS
PRACTICAL LAB DELIVERABLE:

MODULE 02⏱️ ~5 Guided Hours
Turning an Idea into a Buildable Plan

KEY TOPICS COVERED:
User StoryAcceptance CriteriaMVP (Minimum Viable Product)Wireframe
PRACTICAL LAB DELIVERABLE:

MODULE 03⏱️ ~5 Guided Hours
Getting Started with Codex and Antigravity

KEY TOPICS COVERED:
Google AntigravityOpenAI CodexScaffoldingPrompt Engineering for Code
PRACTICAL LAB DELIVERABLE:

MODULE 04⏱️ ~5 Guided Hours
HTML and Page Structure

KEY TOPICS COVERED:
Semantic HTMLDOM (Document Object Model)Accessibility LandmarkAlt Text
PRACTICAL LAB DELIVERABLE:

MODULE 05⏱️ ~5 Guided Hours
CSS, Layout, and Responsive Design

KEY TOPICS COVERED:
Box ModelFlexbox (Flexible Box Layout)CSS GridMobile-First Design
PRACTICAL LAB DELIVERABLE:

MODULE 06⏱️ ~5 Guided Hours
JavaScript Foundations

KEY TOPICS COVERED:
JavaScriptVariableFunctionEvent Listener
PRACTICAL LAB DELIVERABLE:

MODULE 07⏱️ ~5 Guided Hours
Forms and User Interaction

KEY TOPICS COVERED:
event.preventDefault()Client-Side ValidationEmpty StateRegular Expression (Regex)
PRACTICAL LAB DELIVERABLE:

MODULE 08⏱️ ~5 Guided Hours
Project Organisation, Git, and GitHub

KEY TOPICS COVERED:
GitGitHubCommit.gitignore
PRACTICAL LAB DELIVERABLE:

MODULE 09⏱️ ~5 Guided Hours
APIs and Back-End Concepts

KEY TOPICS COVERED:
API (Application Programming Interface)JSON (JavaScript Object Notation)HTTP Status Codeasync / await
PRACTICAL LAB DELIVERABLE:

MODULE 10⏱️ ~5 Guided Hours
Databases and Basic User Accounts

KEY TOPICS COVERED:
Database TablePrimary KeyForeign KeyAuthentication (AuthN)
PRACTICAL LAB DELIVERABLE:

MODULE 11⏱️ ~5 Guided Hours
Testing, Accessibility, Security, and Deployment

KEY TOPICS COVERED:
Smoke TestingWCAG (Web Content Accessibility Guidelines)XSS (Cross-Site Scripting)Continuous Deployment (CD)
PRACTICAL LAB DELIVERABLE:

MODULE 12⏱️ ~5 Guided Hours
Capstone and Portfolio

KEY TOPICS COVERED:
Capstone ProjectTechnical Case StudyPortfolioRubric
PRACTICAL LAB DELIVERABLE:

PRACTICAL CAPSTONE SHOWCASE

The Capstone Project: Small-Business Service Booking Application

Throughout the 12 modules, you build one coherent, production-ready web application using fictional business data (e.g., local tech support, plumbing, or salon services).

📋1. Service Catalog & Pricing Cards

Structured semantic cards displaying service names, estimated duration, base pricing, and dynamic selection states built with HTML and CSS Flexbox.

📅2. Interactive Booking Form & Validation

Date, time, customer details, and custom requirements form with real-time field validation, accessible ARIA alerts, and clean error messages.

🔍3. Summary Modal & Receipt Generator

A confirmation modal that recalculates totals, provides an opportunity to edit selections, and generates a simulated confirmation reference code.

📊4. Staff Booking Log & API Integration

A beginner-friendly admin view displaying recent bookings stored in a database or mock REST API, with filter buttons for pending vs. confirmed status.

🛡️ Safe Learning Policy: Fictional Data Only

To protect privacy and ensure compliance with security best practices, the capstone application operates purely with fictional booking records. We do not ask learners to handle real credit card processing or sensitive personal identifiers in their first web project.

THE CORE HABIT OF EFFECTIVE AI DIRECTORS

The 8-Step Collaborative Development Cycle

We train you to direct AI agents systematically. You are never a passive bystander copying code you do not understand. You steer the agents using this verified 8-step workflow.

STEP 1
Scope the Feature

Describe the user problem and define a single, small feature rather than asking for an entire app at once.

STEP 2
Request Plan First

Ask Google Antigravity to explain its proposed architectural plan before touching any project files.

STEP 3
Build Incrementally

Allow the agent to generate code for one feature at a time to maintain clean, isolated changes.

STEP 4
Inspect & Preview

Inspect changed files in the editor and preview the visual result immediately in the local browser.

STEP 5
Code Walkthrough

Ask OpenAI Codex to explain newly created or modified functions in plain, beginner-friendly terms.

STEP 6
Test & Debug

Test edge cases. When errors occur, feed exact browser console messages back to the agent for investigation.

STEP 7
Commit to GitHub

Save working versions with clear commit messages in GitHub before moving on to the next requirement.

STEP 8
Handoff & Review

Use OpenAI Codex to perform a final code review and security sanity check on the Antigravity build.

MASTERCLASS CURRICULUM PREVIEW

Module 01 Video Lecture Preview

Preview the foundational lecture from Module 01 below. Enroll in the course to unlock the full 12-module masterclass lecture suite, hands-on production codebases, and interactive labs.

MODULE 01 MASTERCLASS PREVIEW

How Does the Web Work? Client-Server Architecture & Page Requests

Lecturer: Dr. Colleen Van Lent (University of Michigan) • Duration: 48:15 • OER CC BY 3.0
🔒 PLAYBACK LOCKED
Module 01 Video Masterclass Thumbnail
🔒
ENROLLED LEARNER CONTENT • VIDEO LOCKED

Unlock Module 01 Masterclass Video & Coding Labs

Full HD lecture streaming, interactive Google Antigravity prompt labs, OpenAI Codex code walkthroughs, and mentor-reviewed practical deliverables unlock immediately upon enrollment.

Explore Study Notes in Demo LMS ↗
Open Educational Resource Attribution (CC BY 3.0):Lecture material from 'Web Design for Everybody' (wd4e.com) by Colleen Van Lent, Ph.D. / University of Michigan. Licensed under Creative Commons Attribution 3.0 Unported. Materials utilized under open educational reuse terms. Colleen Van Lent and the University of Michigan do not sponsor, administer, or endorse TrustStack Academy.
LEARNER SUPPORT TOOLKIT

10 Professional Developer Toolkits & Guides

All enrolled students gain permanent access to these downloadable workbooks, checklists, and cheat sheets inside the LMS Resource Centre.

AI Coding Agents & Cloud Free-Tier Setup Runbook

Step-by-step onboarding guide with direct signup links to the free tiers of Google Antigravity (aistudio.google.com), OpenAI Codex (platform.openai.com), Supabase ($0 free plan at supabase.com/pricing), and GitHub (github.com/join).

Beginner Web Engineering Glossary

Plain-language definitions of 60+ fundamental web, network, and database terms from API to Z-index.

Semantic HTML5 Elements Cheat Sheet

Visual mapping of document landmarks, headings, form elements, and accessible attributes.

CSS Box Model & Flexbox Layout Guide

Practical diagrams illustrating margins, borders, padding, flex direction, and alignment properties.

JavaScript Fundamentals Workbook

Annotated starter snippets for variables, functions, event listeners, and array methods.

Antigravity & Codex Prompting Playbook

Battle-tested prompts for scoping features, requesting architecture plans, scaffolding files, and line-by-line code explanation.

AI Code-Review & Verification Checklist

Systematic 10-point checklist to inspect and test AI-generated code before committing.

Browser DevTools & Debugging Handbook

Step-by-step instructions for inspecting DOM nodes, debugging CSS layouts, and analyzing network requests.

Git & GitHub Essential Workflow Guide

Clear commands and best practices for repositories, commits, branches, and remote publishing.

WCAG 2.1 Accessibility & OWASP Security Checklist

Essential pre-flight audit checklist covering color contrast, keyboard tab order, ARIA labels, and XSS prevention.

Capstone Project Rubric & Portfolio Template

Full 100-point scoring rubric, user story template, and README case-study structure for final submission.

VERIFIABLE CREDENTIAL

Earn a Credential Grounded in Demonstrated Competence.

Completing the 12 modules, passing each knowledge check, and submitting your deployed capstone application with a documented GitHub repository earns you the official TrustStack Academy certificate and digital career badge.

  • Credential Title: Certificate of Completion in Web Application Development (CWAD • OpenAI Codex & Google Antigravity)
  • Digital Career Badge: Official CWAD Sovereign Shield digital credential for LinkedIn, resumes, and portfolio verification
  • Public Verification: Authenticated on the official registry at truststack.academy/verify
  • Demonstrated Artifacts: Deployed live web application + clean public GitHub repository
  • 1-Click Sharing: Instant integration with LinkedIn Licenses & Certifications, GitHub, and resumes
Permanent Registry Record.

Your certificate ID is cryptographically recorded so clients, employers, and peers can verify your completion without friction.

TrustStack Academy certificate seal
TRUSTSTACK
ACADEMY
SPECIALIZED PATHWAY
WEB APPLICATION DEVELOPMENT

SAMPLE - NOT VALID

CERTIFICATE OF COMPLETION

Web Application Development
(OpenAI Codex & Google Antigravity)

This sample recognises the achievement of

Your Name Here

For successfully fulfilling all 12 modules, practical lab deliverables, and deploying a functional web application directing
OpenAI Codex & Google Antigravity

TRUSTSTACK ACADEMY
Competence • Integrity • Innovation
VerifiedDESIGN PREVIEW

Sample layout only - not an issued credential. QR opens this preview. "Verified" illustrates the status of an approved certificate.

TrustStack Academy CWAD Certified Developer Badge
OFFICIAL DIGITAL CAREER BADGE

CWAD Sovereign Shield Credential

Every graduate receives the official, cryptographically verifiable CWAD (Certified Web Application Developer) digital credential badge. Designed to stand out on LinkedIn profiles, GitHub repositories, and developer portfolios.

AcronymCWAD
Issued ByTrustStack Academy
SpecializationOpenAI Codex • Google Antigravity
Registry StatusVerifiable • MMXXVI
TRANSPARENT TUITION • NO SURPRISE FEES

Enroll in Web Application Development for ₦100,000

Lifetime access to all 12 modules, open video lectures, AI prompt labs, capstone grading, verifiable certificate, and career guidance.

COMPLETE 12-MODULE PROGRAM
₦100,000
Pay in full today (₦100,000) or choose our 2-part flexible installment (₦55,000 today)
CLEAR ANSWERS TO YOUR QUESTIONS

Frequently Asked Questions

Do I need prior coding or computer science experience to take this course?

No prior coding experience is required. The curriculum is intentionally designed from ground zero. We begin with how the internet and browsers operate, progress through HTML, CSS, and JavaScript fundamentals, and then teach you how to direct, explain, and review code using OpenAI Codex and Google Antigravity.

What computer hardware and internet connection do I need?

You need a desktop computer or laptop (Windows, macOS, or modern Linux) with at least 4GB of RAM and an up-to-date web browser (Google Chrome, Mozilla Firefox, or Microsoft Edge). A reliable broadband internet connection is necessary to stream video lessons and interact with the AI platforms.

What do OpenAI Codex and Google Antigravity actually do in this course?

Google Antigravity serves as your primary AI-first workspace for planning projects, scaffolding starter files, executing terminal build commands, and testing changes in real browsers. OpenAI Codex is used as an explanatory pair programmer to break down complex functions line-by-line, review code diffs, audit accessibility, and investigate errors.

Why do I still need to learn HTML, CSS, and JavaScript if AI can write code?

AI coding agents cannot build what they are not instructed to build. Without understanding HTML semantics, CSS responsive rules, and JavaScript logic, a developer cannot judge whether an agent’s output is correct, accessible, or secure. Understanding the fundamentals gives you the confidence to direct the agent, correct errors, and explain your project to clients and employers.

What will I build by the end of the course?

You will plan, build, style, test, and deploy a complete, responsive service-booking and enquiry web application. It features a semantic landing page, dynamic service catalogue, accessible contact and booking form with real-time validation, state handling, and a live deployment on a public host.

How does the self-paced format work?

The program consists of 12 structured modules totaling approximately 60 guided learning hours. You have on-demand access to all instructional study notes, masterclass video lectures with open-licensed attributions, interactive knowledge checks, prompt workbooks, and practical lab deliverables. You can study at your own pace around work or academic commitments.

What accounts and external subscriptions are required? Do I have to pay extra?

No. You do NOT need any paid subscriptions to complete this course. All coursework is engineered around 100% zero-cost free tiers: (1) Google Antigravity & AI Studio (free at https://aistudio.google.com/ using a standard Google account), (2) OpenAI Codex / free chat tier (free at https://platform.openai.com/ or https://chatgpt.com/), (3) GitHub (free developer account at https://github.com/join), and (4) Supabase for Module 10 database practice (100% Free Tier with no credit card required at https://supabase.com/pricing). We also provide zero-cloud local mock options so you never incur hosting bills.

What are the tuition and payment options?

Tuition is ₦100,000. TrustStack Academy provides an existing flexible payment option via Paystack, allowing learners to pay in full or spread tuition across two installments (with Part 1 unlocking the foundational modules and Part 2 unlocking advanced modules and certificate evaluation).

What certificate or credential do I earn upon completion?

Learners who complete all 12 modules, pass the knowledge checks, and successfully submit the capstone application evaluated against the 100-point rubric receive the official TrustStack Academy Certificate of Completion in Web Application Development with OpenAI Codex and Google Antigravity.

What career pathways does this course support?

This course prepares learners for entry-level opportunities such as Junior Web Assistant, Technical Content & Web Specialist, Freelance Web Builder for Small Businesses, QA & Accessibility Reviewer, and provides a strong foundation for full-stack software engineering programs.