WebDAV for Smart Glasses — Nextcloud Access from Glasses Hardware

WebDAV and Nextcloud for Smart Glasses

WebDAV provides smart glasses with access to self-hosted cloud storage — primarily Nextcloud and ownCloud instances. The protocol works over standard HTTPS, meaning it's accessible from any internet connection without special network configuration, VPN, or port forwarding.

For glasses users, this translates to: your personal cloud library (music, podcasts, AR assets, reference files) is accessible wherever you have WiFi. On phone-paired audio glasses, this means your entire Nextcloud music library is available for open-ear speaker playback. On standalone compute units, it means direct file access for any purpose.

How WebDAV Serves Glasses Users

Audio Glasses (Phone-Mediated)

For Ray-Ban Meta, Bose Frames, Echo Frames, and similar audio-focused glasses:

The workflow:

1. AnExplorer on phone → WebDAV connection to Nextcloud
2. Browse your music/podcast library on the cloud
3. Stream or download audio files
4. Audio plays through phone → Bluetooth → glasses speakers
5. Enjoy open-ear audio from your self-hosted cloud

Why this matters:

• No Spotify/Apple Music subscription needed
• Your own music library, hosted on your terms
• Available from any WiFi (not just home network)
• Full privacy — audio content stays on your infrastructure

Standalone Compute Units

AR glasses with Android compute units access WebDAV directly:

• Browse Nextcloud files on the compute unit
• Download AR assets, configs, media
• Upload data (sensor logs, captured content) back to cloud
• Full bidirectional file management

Display Glasses (Phone-Projected)

See AnExplorer's WebDAV interface through the glasses display:

• Navigate cloud files using glasses input methods
• Operations execute on the phone
• Visual confirmation through glasses projection

Primary Use Case: Self-Hosted Audio Library

The number one reason glasses users care about WebDAV:

Your music, your cloud, your glasses.

Instead of paying for streaming subscriptions or being limited to what's on your phone's local storage, your entire music collection on Nextcloud becomes your glasses audio source.

Setting up the music pipeline

1. On Nextcloud: Organize music library

   /Music/
   ├── Playlists/
   │   ├── Commute/
   │   ├── Workout/
   │   └── Focus/
   ├── Artists/
   │   └── (full library)
   └── Podcasts/
       └── (auto-downloaded episodes)
   

2. On phone: Save WebDAV bookmark in AnExplorer
3. Daily use: Open AnExplorer → WebDAV → navigate to today's playlist → play → audio through glasses

Streaming vs. downloading for audio

Recommendation: Download your day's audio when on good WiFi (morning at home). Stream when you're on reliable WiFi and want to browse without committing to downloads.

Secondary Use Case: Enterprise AR Content

Organizations deploying smart glasses to workers:

Nextcloud as corporate content hub

• IT manages Nextcloud instance with AR training materials, procedure guides, reference data
• Workers' glasses access via WebDAV using corporate credentials
• Content updates pushed to Nextcloud → available on glasses next access
• Access control via Nextcloud user permissions and groups

Content types for enterprise glasses

Security advantages of self-hosted

• Data stays on corporate servers (no third-party cloud risk)
• Audit trail via Nextcloud activity logs
• Granular access control (department-level, role-level)
• Data residency compliance (server location under your control)
• Device revocation via app passwords (lost glasses → revoke access instantly)

WebDAV Configuration Details

Nextcloud URL format

https://cloud.company.com/remote.php/dav/files/USERNAME/

Common WebDAV servers that work

Authentication options

• Username + password: Standard, works everywhere
• App passwords: Nextcloud feature — device-specific passwords, revocable individually
• OAuth tokens: Some WebDAV servers support token-based auth
• Client certificates: For enterprise deployments with PKI

Recommended: App passwords for device authentication. Create one labeled "Smart Glasses" — revoke if device is lost.

Performance Characteristics

Audio streaming from WebDAV

WebDAV streams audio by serving the file over HTTPS. Performance:

For glasses speakers (which can't reproduce audiophile detail anyway), MP3 320kbps or AAC 256kbps provides the best quality-to-bandwidth balance.

File download speeds

Bottleneck for remote access: Your Nextcloud server's upload bandwidth. If hosted at home on typical residential internet (10-50 Mbps upload), that limits download speed from glasses.

Offline Considerations

WebDAV requires network access. For offline glasses use:

1. Download needed audio/files while on WiFi
2. Files stored locally on phone or compute unit
3. Available offline for glasses playback/access
4. Re-sync when WiFi is available again

Nextcloud desktop sync on your phone can automate this — set specific folders to sync, and those files are always available offline for glasses access.

Battery and Power

WebDAV over HTTPS:

• Slightly more CPU-intensive than plain HTTP (TLS encryption)
• Negligible compared to WiFi radio power consumption
• On phone (for audio glasses): minimal impact on phone battery
• On compute unit: similar to any network file access

Audio streaming via WebDAV doesn't significantly impact battery beyond what Bluetooth audio transmission already costs.

Privacy and Security

Why self-hosted matters for glasses

Smart glasses capture data (audio, potentially photos/video on some models). Storing associated files on self-hosted infrastructure means:

• No third-party scanning of your data
• Complete control over retention and deletion
• Compliance with personal data regulations
• No advertising profile built from your file access patterns

Secure access

• HTTPS encrypts all communication
• App passwords limit per-device exposure
• Server-side access logs show who accessed what and when
• Revocation is instant (delete app password → access denied)

Limitations

Audio glasses can't browse: No display for WebDAV navigation. Everything happens on the phone.

Complex URLs: WebDAV URLs are longer than simple FTP host:port. Initial setup requires careful entry.

No offline sync feature: AnExplorer doesn't maintain a sync relationship with WebDAV. Each access is manual or on-demand.

Server dependency: If your Nextcloud is down, no access. Ensure reliable hosting for glasses that depend on cloud content.

Streaming reliability: Depends on network quality. For mission-critical audio (presentations, guided procedures), download first rather than relying on streaming.

Related Guides

• WebDAV Network Access — complete WebDAV overview
• FTP on Smart Glasses — local network alternative
• SMB on Smart Glasses — LAN file access
• Music Player for Smart Glasses — audio playback