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Royce

Posted on • Originally published at ossalt.com

Self-Host Nextcloud: Google Drive Alternative 2026

#nextcloud #googledrive #filesync #collaboration

TL;DR

Nextcloud (AGPL 3.0, ~27K GitHub stars, PHP) is a complete self-hosted productivity suite — file sync and share, document editing (Collabora/OnlyOffice), calendar and contacts sync (CalDAV/CardDAV), video conferencing (Nextcloud Talk), and 200+ apps. Replace Google Drive ($3/month), Google Docs, Google Calendar, and Google Meet with one self-hosted stack. The All-in-One (AIO) Docker image makes setup significantly easier than the traditional method.

Key Takeaways

  • Nextcloud: AGPL 3.0, ~27K stars, PHP — complete Google Workspace replacement
  • AIO image: Official all-in-one Docker image handles Nextcloud, Postgres, Redis, and reverse proxy
  • Office editing: Collabora Online (LibreOffice) or OnlyOffice for .docx/.xlsx/.pptx in the browser
  • Sync clients: Desktop (Windows/macOS/Linux) and mobile (iOS/Android) — bidirectional sync
  • CalDAV/CardDAV: Sync calendar and contacts with iOS, Android, and Thunderbird
  • Talk: Encrypted video/audio calls without third-party servers (requires TURN server for external access)

Nextcloud vs Google Workspace

Feature Nextcloud (self-hosted) Google Workspace
Cost Free (hosting) $6–$18/user/mo
File storage Unlimited (your disk) 30GB–5TB/user
Office suite Collabora / OnlyOffice Google Docs
Calendar Yes (CalDAV) Google Calendar
Contacts Yes (CardDAV) Google Contacts
Video calls Nextcloud Talk Google Meet
Email No (separate) Gmail
Mobile apps Yes Yes
Data ownership Yours Google

Part 1: Nextcloud All-in-One (AIO) Setup

The AIO image is the recommended installation method — it manages all components automatically.

# docker-compose.yml
services:
  nextcloud-aio-mastercontainer:
    image: nextcloud/all-in-one:latest
    container_name: nextcloud-aio-mastercontainer
    restart: always
    ports:
      - "8080:8080"    # AIO management interface
    volumes:
      - nextcloud_aio_mastercontainer:/mnt/docker-aio-config
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      APACHE_PORT: "11000"          # Port for reverse proxy to forward to
      APACHE_IP_BINDING: "127.0.0.1"
      NEXTCLOUD_DATADIR: "/mnt/ncdata"    # Where files are stored (use external drive)
      NEXTCLOUD_MAX_TIME: "3600"
      NEXTCLOUD_MEMORY_LIMIT: "512M"

volumes:
  nextcloud_aio_mastercontainer:
    name: nextcloud_aio_mastercontainer
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docker compose up -d
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Visit https://your-server-ip:8080 → AIO management interface.

Part 2: HTTPS with Caddy

AIO requires a reverse proxy that handles TLS. Configure Caddy:

cloud.yourdomain.com {
    reverse_proxy localhost:11000
}
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In the AIO management interface:

  1. Enter your domain: cloud.yourdomain.com
  2. Click Submit → AIO validates DNS
  3. Start containers → AIO pulls and starts all services (10–15 minutes first run)
  4. Get your Nextcloud admin password from the AIO interface

Part 3: Traditional Docker Setup (Alternative)

If you prefer manual control:

services:
  db:
    image: postgres:16-alpine
    restart: unless-stopped
    volumes:
      - db_data:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: nextcloud
      POSTGRES_USER: nextcloud
      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"

  redis:
    image: redis:alpine
    restart: unless-stopped

  nextcloud:
    image: nextcloud:stable-apache
    restart: unless-stopped
    ports:
      - "8080:80"
    volumes:
      - nextcloud_data:/var/www/html
      - /mnt/ncdata:/var/www/html/data    # External storage for files
    depends_on:
      - db
      - redis
    environment:
      POSTGRES_HOST: db
      POSTGRES_DB: nextcloud
      POSTGRES_USER: nextcloud
      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
      REDIS_HOST: redis
      NEXTCLOUD_ADMIN_USER: admin
      NEXTCLOUD_ADMIN_PASSWORD: "${ADMIN_PASSWORD}"
      NEXTCLOUD_TRUSTED_DOMAINS: "cloud.yourdomain.com"
      OVERWRITEPROTOCOL: "https"
      OVERWRITECLIURL: "https://cloud.yourdomain.com"

volumes:
  db_data:
  nextcloud_data:
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Part 4: Desktop Sync Client

  1. Download Nextcloud Desktop (Windows/macOS/Linux)
  2. Add account → Server: https://cloud.yourdomain.com
  3. Log in → Configure sync folders
  4. Files sync automatically in the background

Selective sync: Right-click tray icon → Settings → choose which folders to sync locally.

Part 5: Mobile Apps

Features:

  • Auto-upload photos: Camera roll automatically backed up
  • Offline access: Mark files for offline viewing
  • Talk: Video calls from mobile
  • Files: Browse and edit documents

Part 6: Office Document Editing (Collabora)

Edit .docx, .xlsx, .pptx directly in the browser via Collabora Online:

With AIO

Collabora is included in AIO — enable it in the AIO interface under Optional containers.

Manual Collabora Setup 

services:
  collabora:
    image: collabora/code:latest
    container_name: collabora
    restart: unless-stopped
    ports:
      - "9980:9980"
    environment:
      domain: "cloud\\.yourdomain\\.com"    # Escape dots
      username: "admin"
      password: "${COLLABORA_ADMIN_PASSWORD}"
      aliasgroup1: "https://cloud.yourdomain.com:443"
    cap_add:
      - MKNOD
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office.yourdomain.com {
    reverse_proxy https://localhost:9980 {
        transport http {
            tls_insecure_skip_verify
        }
    }
}
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In Nextcloud → Apps → Install Nextcloud Office → Settings → enter https://office.yourdomain.com.

Part 7: Calendar and Contacts Sync

iOS Setup

Calendar (CalDAV):

  1. Settings → Calendar → Accounts → Add Account → Other → Add CalDAV Account
  2. Server: https://cloud.yourdomain.com/remote.php/dav
  3. Username + password → Save

Contacts (CardDAV):

  1. Settings → Contacts → Accounts → Add Account → Other → Add CardDAV Account
  2. Server: https://cloud.yourdomain.com/remote.php/dav
  3. Username + password → Save

Android (via DAVx5)

  1. Install DAVx5 (open source CalDAV/CardDAV client)
  2. Add account → Login with URL
  3. Base URL: https://cloud.yourdomain.com
  4. Login → Select calendars and address books to sync

Thunderbird

  1. Thunderbird → Calendar → New Calendar → Network
  2. Format: CalDAV
  3. Location: https://cloud.yourdomain.com/remote.php/dav/calendars/username/personal/

Part 8: Nextcloud Talk (Video Calls)

Nextcloud Talk provides end-to-end encrypted video and audio calls:

  1. Apps → Install Nextcloud Talk
  2. For internal calls (LAN): works immediately
  3. For external access: requires a TURN server

TURN Server for External Video Calls 

services:
  coturn:
    image: coturn/coturn:latest
    restart: unless-stopped
    network_mode: host
    command: >
      -n --log-file=stdout
      --min-port=49160 --max-port=49200
      --realm=cloud.yourdomain.com
      --static-auth-secret="${TURN_SECRET}"
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In Nextcloud → Settings → Talk → TURN server:

  • URL: turn:turn.yourdomain.com:3478
  • Secret: your TURN_SECRET

Part 9: External Storage

Mount S3, SFTP, or other cloud storage as a Nextcloud folder:

  1. Apps → Install External Storage Support
  2. Settings → External Storages → Add Storage
  3. Type: Amazon S3
    • Bucket: my-nextcloud-bucket
    • Region: us-east-1
    • Key + Secret
  4. Folder appears in your Nextcloud Files

Performance Tuning 

# /var/www/html/config/config.php additions:

'memcache.local' => '\OC\Memcache\APCu',
'memcache.distributed' => '\OC\Memcache\Redis',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => [
    'host' => 'redis',
    'port' => 6379,
],
'default_phone_region' => 'US',
'maintenance_window_start' => 1,    # Run maintenance at 1am UTC
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Maintenance 

# Update (AIO):
# AIO management interface → Update

# Update (manual):
docker compose pull
docker compose up -d

# Run occ commands (Nextcloud CLI):
docker exec --user www-data nextcloud php occ status
docker exec --user www-data nextcloud php occ upgrade
docker exec --user www-data nextcloud php occ files:scan --all

# Backup:
docker exec --user www-data nextcloud php occ maintenance:mode --on
tar -czf nextcloud-backup-$(date +%Y%m%d).tar.gz /mnt/ncdata
# Backup database:
docker exec db pg_dump -U nextcloud nextcloud > nextcloud-db-$(date +%Y%m%d).sql
docker exec --user www-data nextcloud php occ maintenance:mode --off
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See all open source collaboration and file sync tools at OSSAlt.com/alternatives/google-drive.

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