GitHub Actions Tips That Will Make Your Team Love You

CI/CD pipelines are like onions - they have layers, and sometimes they make you cry.

But with the right approach, they can be absolutely beautiful.

Tip 1: Cache Everything

uses: actions/cache@v3

with:

path: ~/.npm

key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}

This one trick alone saved our team 5 minutes per pipeline run. Across 50 daily runs, that's 250 minutes saved. You're welcome.

Tip 2: Matrix Builds Are Magic

Test across multiple versions without duplicate code:

strategy:

matrix:

node-version: [18.x, 20.x, 22.x]

os: [ubuntu-latest, windows-latest]

Tip 3: Reusable Workflows

Stop copying YAML across repos. Create reusable workflows that your entire org can use:

jobs:

call-deploy:

uses: org/shared-workflows/.github/workflows/deploy.yml@main

with:

environment: production

Tip 4: Secrets Management Done Right

Never hardcode secrets. Use GitHub Secrets and reference them safely:

env:

API_KEY: ${{ secrets.API_KEY }}

Go automate all the things! 🤖