# Set Up a New Mac
#macos
## Prepare the Setup
* Backup `Surge.app` and the profile.
* Backup the `.gnupg` folder.
## Restore Network
* Restore `Surge.app` and the profile from the backup. Start Surge to enable the proxy.
## Set Up Yubikey
* Install Homebrew
* Set up environment variables for Homebrew
```
export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles
export HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK=1
```
* Install GnuPG
```
brew install gnupg pinentry-mac
```
* Restore the `.gnupg` folder. Enable SSH support and use `pinentry-mac` in `.gnupg/gpg-agent.conf`
```
default-cache-ttl 600
max-cache-ttl 7200
enable-ssh-support
pinentry-program /usr/local/bin/pinentry-mac
```
* Reboot the Mac if `gpg --card-status` cannot detect the card.
* Use GPG as the SSH agent and continue restoring dotfiles and other repositories from Github
```
export SSH_AUTH_SOCK=$HOME/.gnupg/S.gpg-agent.ssh
```
* Tune the macOS preferences
* Mouse/trackpad speed
* Disable auto correction
* Speed up key repetition