Yes, but use responsibly. These tools automate form filling, which is legal. However, some job boards’ ToS prohibit bots. Use rate limiting, rotate IPs if needed, and respect robots.txt. Self-hosting gives you more control over compliance.

Railway or Render are ideal for beginners—simple UI, automatic deployments from GitHub, and generous free tiers. Heroku is also beginner-friendly but recently removed free plans. GitHub Actions works great for cron-based scripts without needing a server.

Basic command-line and Git knowledge is helpful but not required. Most repos include one-click deploy buttons for Heroku/Railway. You’ll need to configure environment variables (API keys, credentials), which is well-documented in repo README files.

Use environment variables, never hardcode credentials. Most platforms (Heroku, Railway, Render) have secure env var storage. For self-hosted, use Docker secrets or .env files with proper permissions. Enable 2FA on your LinkedIn/job board accounts.

Absolutely! That’s the advantage of open-source. Fork the repo, modify filters, add custom cover letter templates, integrate with your own databases, or build a custom UI. Popular modifications include Notion/Airtable sync and advanced filtering logic.