`I apologize for the confusion. Yes, I understand what a Docker Compose file is, and I can provide you with one that will set up the services you requested. Here's the Compose file:
```yaml
version: "3.9"

services:

  n8n:
    image: n8nio/n8n
    container_name: n8n
    restart: always
    ports:
      - "5678:5678"
    environment:
      - N8N_BASIC_AUTH_ACTIVE=true
      - N8N_BASIC_AUTH_USER=<YOUR_USERNAME>
      - N8N_BASIC_AUTH_PASSWORD=<YOUR_PASSWORD>
    volumes:
      - n8n_data:/root/.n8n

  supabase:
    image: supabase/supabase
    container_name: supabase
    restart: always
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_PASSWORD=<YOUR_PASSWORD>
      - POSTGRES_USER=<YOUR_USERNAME>
    volumes:
      - supabase_data:/var/lib/postgresql/data

  appsmith:
    image: appsmith/appsmith
    container_name: appsmith
    restart: always
    ports:
      - "80:80"
    environment:
      - DATABASE_URL=postgres://<YOUR_USERNAME>:<YOUR_PASSWORD>@supabase:5432/postgres
    volumes:
      - appsmith_data:/appsmith

  nginx-proxy-manager:
    image: jlesage/nginx-proxy-manager
    container_name: nginx-proxy-manager
    restart: always
    ports:
      - "80:80"
      - "443:443"
    environment:
      - TZ=Europe/London
    volumes:
      - npm_data:/config
      - npm_letsencrypt:/etc/letsencrypt

volumes:
  n8n_data:
  supabase_data:
  appsmith_data:
  npm_data:
  npm_letsencrypt:

```

You will need to replace `<YOUR_USERNAME>` and `<YOUR_PASSWORD>` with your desired values. Once you have made those changes, save the file and run the following command from the directory where the Compose file is saved:

```
docker-compose up -d
```

This will start the containers in the background, and you should be able to access the services at the following URLs:

N8N: `http://localhost:5678`
Supabase: `http://localhost:5432`
Appsmith: `http://localhost`
Nginx Proxy Manager: `http://localhost`
The Nginx Proxy Manager should automatically generate and install SSL certificates using Let's Encrypt.