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+<!--
+Title: How to manage Trezor devices using trezorctl on macOS or Tails
+Description: Learn how to how to manage Trezor devices using trezorctl on macOS. or Tails
+Author: Sun Knudsen <https://github.com/sunknudsen>
+Contributors: Sun Knudsen <https://github.com/sunknudsen>
+Reviewers:
+Publication date: 2021-06-26T19:30:49.162Z
+Listed: true
+-->
+
+# How to manage Trezor devices using trezorctl on macOS or Tails
+
+## Requirements
+
+- Computer running macOS Mojave or Catalina or [Tails USB flash drive or SD card](../how-to-install-tails-on-usb-flash-drive-or-sd-card-on-macos)
+- [Trezor One](https://shop.trezor.io/product/trezor-one-black) or [Trezor Model T](https://shop.trezor.io/product/trezor-model-t)
+
+## Caveats
+
+- When copy/pasting commands that start with `$`, strip out `$` as this character is not part of the command
+
+## Setup guide (macOS-only)
+
+> Heads-up: [trezorctl](https://wiki.trezor.io/Using_trezorctl_commands_with_Trezor) is pre-installed on [Tails](https://tails.boum.org/) so setup guide can be [skipped](#usage-guide).
+
+### Step 1: install [Homebrew](https://brew.sh/)
+
+```shell
+/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
+```
+
+### Step 2: disable Homebrew analytics
+
+```shell
+brew analytics off
+```
+
+### Step 3: install [libusb](https://libusb.info/)
+
+```shell
+brew install libusb
+```
+
+### Step 4 (macOS Mojave-only): install [Python 3](https://www.python.org/)
+
+> Heads-up: Python 3 is pre-installed on macOS Catalina.
+
+```shell
+brew install python3
+```
+
+### Step 5: install [attrs](https://www.attrs.org/en/stable/) and [trezorctl](https://wiki.trezor.io/Using_trezorctl_commands_with_Trezor)
+
+```shell
+pip3 install --user attrs trezor
+```
+
+### Step 6: source Python 3 `bin` directory
+
+> Heads-up: find which shell is configured using `echo $SHELL`.
+
+> Heads-up: replace `3.8` with semver of latest version of Python 3 found using `ls $HOME/Library/Python`.
+
+#### Bash (`/bin/bash`)
+
+```shell
+echo 'export PATH=$PATH:$HOME/Library/Python/3.8/bin' >> ~/.bashrc
+source ~/.bashrc
+```
+
+#### Z Shell (`/bin/zsh`)
+
+```shell
+echo 'export PATH=$PATH:$HOME/Library/Python/3.8/bin' >> ~/.zshrc
+source ~/.zshrc
+```
+
+👍
+
+---
+
+## Usage guide
+
+### Install or update firmware
+
+> Heads-up: connect device in [bootloader mode](https://wiki.trezor.io/User_manual:Updating_the_Trezor_device_firmware__T1) before running command.
+
+> Heads-up: Trezor devices [ship without firmware](https://wiki.trezor.io/Firmware) so one needs to install firmware before [setting up device](#setup-device).
+
+```console
+$ trezorctl firmware-update
+Best available version: 1.10.1
+Downloading from https://wallet.trezor.io/data/firmware/1/trezor-1.10.1.bin
+Trezor One firmware with embedded v2 image (1.8.0 or later)
+Firmware version 1.10.1 build 0
+Signatures are valid.
+Firmware fingerprint: 36400becf1cdddec22b8150d56ff59eef76d37fef60dc465a6f82b4858903886
+Embedded v2 image fingerprint: 58738454f7640ddf9fdf462c347bc489a3c6adaacd22225833edbe7fc49704df
+Extracting embedded firmware image.
+```
+
+### Setup device
+
+> Heads-up: replace `--strength 256` with `--strength 128` for 12-word mnemonic.
+
+```console
+$ trezorctl device setup --strength 256 --passphrase-protection --pin-protection --label "My Trezor One" --backup-type single
+Please confirm action on your Trezor device.
+Use the numeric keypad to describe number positions. The layout is:
+    7 8 9
+    4 5 6
+    1 2 3
+Please enter new PIN:
+Please enter new PIN again:
+Device successfully initialized
+```
+
+### Change PIN
+
+```console
+$ trezorctl change-pin
+Please confirm action on your Trezor device.
+Use the numeric keypad to describe number positions. The layout is:
+    7 8 9
+    4 5 6
+    1 2 3
+Please enter current PIN:
+Please enter new PIN:
+Please enter new PIN again:
+PIN changed
+```
+
+### Set label
+
+```console
+$ trezorctl set-label "My Trezor One"
+Please confirm action on your Trezor device.
+Settings applied
+```
+
+### Factory reset device
+
+> Heads-up: connect device in [bootloader mode](https://wiki.trezor.io/User_manual:Updating_the_Trezor_device_firmware__T1) before running command.
+
+```console
+$ trezorctl wipe-device --bootloader
+Wiping user data and firmware!
+Error: trezord: read/48 failed with code 400: device disconnected during action
+```