# Requirements
### Minimal versions
- python 3.7
- postgresql 12

# Prepare
`mkdir ./previews`
`docker volume create --name=caddy_data`

# Known restrictions
- *models.py*, *schema.py*, and current representation of column headers in `headers` db table (as initialised by alembic migration script) **must** be kept in sync
- `SQALCHEMY_DATABASE_URL` in *database.py* and `sqlalchemy.url` in *alembic.ini* **must** be kept in sync
- martin requires a restart after the very first data is uploaded into an empty database
`docker-compose --file docker/docker-compose.yml restart martin`
- *./previews* directory file structure **must** correspond to item *fadr/internal_id*

# Known issues