replit-migration-deep-dive

# Replit Migration Deep Dive ## Current State !`cat .replit 2>/dev/null | head -10 || echo 'No .replit found'` !`cat Procfile 2>/dev/null || echo 'No Procfile (not Heroku)'` !`cat Dockerfile 2>/dev/null | head -10 || echo 'No Dockerfile'` !`cat railway.json 2>/dev/null || echo 'No railway.json'` ## Overview Comprehensive guide for migrating existing applications to Replit from Heroku, Railway, Vercel, Render, or local development. Covers converting configuration files, migrating databases, adapting to Replit's Nix-based environment, and setting up Replit-native features. ## Prerequisites - Source application with working deployment - Access to current database for export - Git repository with application code - Replit Core or Teams plan ## Migration Paths | From | Complexity | Duration | Key Changes | |------|-----------|----------|-------------| | Local dev | Low | 1-2 hours | Add .replit + replit.nix | | Heroku | Medium | 2-4 hours | Procfile to .replit, addons to Replit services | | Railway | Low-Medium | 1-3 hours | railway.json to .replit | | Vercel | Low | 1-2 hours | Usually frontend-only, use Static deploy | | Docker | Medium | 3-6 hours | Dockerfile to replit.nix | ## Instructions ### Step 1: Import from GitHub ```markdown 1. Go to replit.com > Create Repl > Import from GitHub 2. Paste your repository URL 3. Replit auto-detects language and creates default config 4. Review and adjust .replit and replit.nix ``` ### Step 2: Convert from Heroku **Procfile to .r...