Some additional ideas for the Protectli device:
- backup/redundant OPNsense instance for high availability
- backup NAS/storage
- set it up at a family/friend’s house
- a test/QA device for new services or architecture changes
- travel router/firewall
- home theater PC
- Proxmox/virtualization host
- Kubernetes cluster
- Tor, I2P, cryptocurrency, etc. node
- Home Assistant
- dedicated local STT/TTS/conversation agent
- NVR
- low powered desktop PC
There are so many options. It really depends on what you want, your other devices, the Protectli’s specs, your budget, etc.
https://changedetection.io/
Change Detection can be used for several use cases. One of them is monitoring price changes.