Tor Browser 6.0.8 released

Here your approach is to use hardware isolation and always force the traffic to go trough Tor. While it seems a good approach at first, the devil is in the details.

Since the Firefox exploits work on Firefox and not on the tor daemon that is in your SBC(RaspBerry PI) an exploit would compromise your laptop.

Once the laptop is compromised, the traffic still goes trough Tor but:
- Since the attacker controls your laptop, the attacker can identify uniquely, at the exit node the traffic. At this point the attacker still doesn't know where you are located.
- An attacker can monitor all your traffic and access all your files, and with that knowledge try to find your name and position.
- To compute your position, the attacker can use all the laptop's hardware (WiFi, Bluetooth, etc), all the serial numbers (MAC Address, BIOS or UEFI DMI information, various serial number)
- An attacker can use the camera and microphone(s) to gather information on the environment of the laptop.
- An attacker can install persistent malware at the BIOS level or even with higher privileges than that.
- An attacker can try to compromise all the devices you connect to the computer.
- An attacker can try to compromise all accounts you connect to from the computer.

Using physical separation effectively probably requires you do fabricate your own hardware, to avoid all the serial number issues.
Even with that they might not be avoidable entirely:
- CPU might have serial numbers or at least have a way to identify the revision.
- Almost all storage devices uses serial number.

Then if you are the only one using that hardware, you have an issue since you will be deanonymized easily.
You then need to mass produce such hardware, and ensure that it doesn't get compromised at fabrication or shipping.

If some common hardware meet the requirements, and maybe some SBC do(to replace your laptop, not the tor-router ), it would probably work.

The first thing to do, in order to work in this direction, would probably be to:
- Draft precise requirements/specifications
- Review existing hardware, to see if they can meet the specifications.