Add act docs notes

Author: relliv

resources/docs/dev/dx-notes/act.md

@@ -1,10 +1,19 @@
 # 🤖 Act
 
-WIP...
+[Act](https://github.com/nektos/act) is a tool that allows you to run your GitHub Actions locally. It simulates the GitHub Actions environment on your local machine, enabling you to test and debug your workflows before pushing them to GitHub.
 
 ---
 
 - [🤖 Act](#-act)
-  - [🔸 Title](#-title)
+  - [🔸 About](#-about)
+  - [🔸 VSCode Extension: GitHub Local Actions](#-vscode-extension-github-local-actions)
 
-## 🔸 Title
+## 🔸 About
+
+We can emulate GitHub Actions locally with [Act](https://github.com/nektos/act).
+
+> {info} Local running GitHub Actions is not a replacement for CI/CD. It's just a tool to test and debug your workflows before pushing them to GitHub. And it can be slower 5x-10x times than GitHub Actions.
+
+## 🔸 VSCode Extension: GitHub Local Actions
+
+With [GitHub Local Actions](https://github.com/sanjulaganepola/github-local-actions) you can run your GitHub Actions locally. It's a VSCode extension that allows you to run your GitHub Actions locally.