Add .gitignore and update README with fixed issues and new commands

- Created .gitignore to exclude build outputs and temporary files.
- Updated README to document fixes for dependency issues and added commands for generating encryption keys and running the development server.

README.md

@@ -146,8 +146,25 @@ nix build
 
 # Test the service
 nix run .#bitpoll-manage -- check
+
+# Generate encryption key
+nix run .#bitpoll-manage -- generate_encryption_key
+
+# Run development server (requires database setup first)
+nix run . -- 127.0.0.1:8000
 ```
 
+## Fixed Issues
+
+This flake has been updated to resolve dependency issues:
+
+- ✅ **Django Import Error**: Fixed missing Django module by using proper Python environment
+- ✅ **Missing Dependencies**: Added all required Django packages via pip installation
+- ✅ **Python Path**: Corrected PYTHONPATH to include pip-installed packages
+- ✅ **Encryption Keys**: Proper Fernet key generation support
+
+The package now successfully passes system checks and can run bitpoll commands.
+
 ## Dependencies
 
 This flake includes all necessary dependencies: