You can also look up for these other topics:
Framework
Coding Standards
Boilerplate
CMS
Tool
Security
Hacktoberfest
OWASP Vulnerable Web Application Project https://github.com/hummingbirdscyber
OWASPThis code is vulnerable to SQL Injection and having SQLite database. For SQLite database, SQL Injection payloads are different so it is for fun. Just enjoy it \m/
incredibleindishell