diff --git a/.github/workflows/deploy-pages.yml b/.github/workflows/deploy-pages.yml
index 072c5c9..a0caf1a 100644
--- a/.github/workflows/deploy-pages.yml
+++ b/.github/workflows/deploy-pages.yml
@@ -40,7 +40,7 @@ jobs:
         run: npm ci && npm run build
         working-directory: gstack
         env:
-          SITE_URL: https://tiennm99dev.github.io
+          SITE_URL: https://tiennm99.github.io
           SITE_BASE: /ai-coding-workflow-labs/gstack
 
       - name: Build cc4e-course quiz
diff --git a/README.md b/README.md
index 89983c0..80cbad9 100644
--- a/README.md
+++ b/README.md
@@ -2,21 +2,21 @@
 
 Experiments with AI-assisted coding workflows and tooling. Each directory was a
 standalone repository, merged here with full history. The web demos are served
-together at **[tiennm99dev.github.io/ai-coding-workflow-labs](https://tiennm99dev.github.io/ai-coding-workflow-labs/)**.
+together at **[tiennm99.github.io/ai-coding-workflow-labs](https://tiennm99.github.io/ai-coding-workflow-labs/)**.
 
 | Directory | Experiment | Demo |
 | --- | --- | --- |
-| [`claudekit/`](./claudekit/) | ClaudeKit workflow (Vite/JS) | [/claudekit/](https://tiennm99dev.github.io/ai-coding-workflow-labs/claudekit/) |
-| [`superpowers/`](./superpowers/) | Superpowers skill set (Vite/JS) | [/superpowers/](https://tiennm99dev.github.io/ai-coding-workflow-labs/superpowers/) |
-| [`bmad/`](./bmad/) | BMAD method (Vite/JS) | [/bmad/](https://tiennm99dev.github.io/ai-coding-workflow-labs/bmad/) |
-| [`oh-my-claudecode/`](./oh-my-claudecode/) | oh-my-claudecode (static) | [/oh-my-claudecode/](https://tiennm99dev.github.io/ai-coding-workflow-labs/oh-my-claudecode/) |
-| [`gstack/`](./gstack/) | gstack starter (Astro/Bun) | [/gstack/](https://tiennm99dev.github.io/ai-coding-workflow-labs/gstack/) |
-| [`cc4e-course/`](./cc4e-course/) | Claude Code for Everyone course work | [/cc4e-course/](https://tiennm99dev.github.io/ai-coding-workflow-labs/cc4e-course/) |
-| [`advanced-claude-workflows/`](./advanced-claude-workflows/) | Hooks/aliases notes | [/advanced-claude-workflows/](https://tiennm99dev.github.io/ai-coding-workflow-labs/advanced-claude-workflows/) |
-| [`cowork-complete-guide/`](./cowork-complete-guide/) | Claude Cowork complete-guide practices | [/cowork-complete-guide/](https://tiennm99dev.github.io/ai-coding-workflow-labs/cowork-complete-guide/) |
+| [`claudekit/`](./claudekit/) | ClaudeKit workflow (Vite/JS) | [/claudekit/](https://tiennm99.github.io/ai-coding-workflow-labs/claudekit/) |
+| [`superpowers/`](./superpowers/) | Superpowers skill set (Vite/JS) | [/superpowers/](https://tiennm99.github.io/ai-coding-workflow-labs/superpowers/) |
+| [`bmad/`](./bmad/) | BMAD method (Vite/JS) | [/bmad/](https://tiennm99.github.io/ai-coding-workflow-labs/bmad/) |
+| [`oh-my-claudecode/`](./oh-my-claudecode/) | oh-my-claudecode (static) | [/oh-my-claudecode/](https://tiennm99.github.io/ai-coding-workflow-labs/oh-my-claudecode/) |
+| [`gstack/`](./gstack/) | gstack starter (Astro/Bun) | [/gstack/](https://tiennm99.github.io/ai-coding-workflow-labs/gstack/) |
+| [`cc4e-course/`](./cc4e-course/) | Claude Code for Everyone course work | [/cc4e-course/](https://tiennm99.github.io/ai-coding-workflow-labs/cc4e-course/) |
+| [`advanced-claude-workflows/`](./advanced-claude-workflows/) | Hooks/aliases notes | [/advanced-claude-workflows/](https://tiennm99.github.io/ai-coding-workflow-labs/advanced-claude-workflows/) |
+| [`cowork-complete-guide/`](./cowork-complete-guide/) | Claude Cowork complete-guide practices | [/cowork-complete-guide/](https://tiennm99.github.io/ai-coding-workflow-labs/cowork-complete-guide/) |
 | [`ross-mike-workflows/`](./ross-mike-workflows/) | Ross Mike workflows mini-lesson practices | — |
 | [`vin-obsidian-workflows/`](./vin-obsidian-workflows/) | Vin Obsidian workflows mini-lesson practices (Obsidian vault) | — |
-| [`gsd-framework/`](./gsd-framework/) | GSD (Get Shit Done) Advanced Vibe Coding practice — expense splitter (Vite/Preact) | [/gsd-framework/](https://tiennm99dev.github.io/ai-coding-workflow-labs/gsd-framework/) |
+| [`gsd-framework/`](./gsd-framework/) | GSD (Get Shit Done) Advanced Vibe Coding practice — expense splitter (Vite/Preact) | [/gsd-framework/](https://tiennm99.github.io/ai-coding-workflow-labs/gsd-framework/) |
 | [`cline/`](./cline/) | Cline agent test — Flappy Bird game (Phaser/webpack) | — |
 | [`solver/`](./solver/) | Solver agent test — Netty 4 WebSocket game server (Java/Maven) | — |