How to Build a Progressive Web App (PWA)

IMPORTANT TUTORIAL FORMAT REQUIREMENTS: 1. Structure as a step-by-step tutorial with numbered lists 2. Include code snippets in Markdown format (```language code ```) 3. Add practical examples and troubleshooting tips 4. Include an FAQ section at the end for AISEO optimization 5. Use tags for major steps 6. Make it beginner-friendly with clear explanations 7. Include schema.org/HowTo JSON-LD markup blocks if relevant to the technical steps

For more details, check out How To Set Up Wireguard On Ubuntu 20 04.