User manual:Running a local instance of Trezor Wallet
From Trezor Wiki
You can run a local instance of Trezor Wallet on your computer. Together with a local Blockbook server, you can be completely independent from connecting to SatoshiLabs servers.
How to install a local instance of Trezor Wallet[edit]
1. Install Python. (Guide for Windows and Linux)
2. Download Trezor Wallet from https://wallet.trezor.io/data/mytrezor-archive.tgz.
3. Extract it to a new folder and run:
python -m SimpleHTTPServer 8000
For python3 users:
python3 -m http.server 8000
This will run a server at localhost:8000
4. Open localhost:8000 in your browser (Google Chrome or Firefox).
Important If you decide to rely on a local instance of Trezor Wallet, make sure to regularly download the current version of the Wallet using the link above.
See also Running a local instance of Trezor Wallet backend (Blockbook)