Wrapper for Specter Desktop

Specter Desktop is a desktop GUI for Bitcoin Core optimised to work with hardware wallets . This .s9pk wrapper will allow you to run Specter Desktop on your Embassy.

Embassy Service Pre-Requisites:

• Bitcoin Core

Dependencies

• docker
• docker-buildx
• yq
• toml
• embassy-sdk
• make

Build enviroment

Prepare your EmbassyOS build enviroment. In this example we are using Ubuntu 20.04.

1. Install docker

curl -fsSL https://get.docker.com -o- | bash
sudo usermod -aG docker "$USER"
exec sudo su -l $USER

2. Set buildx as the default builder

docker buildx install
docker buildx create --use

3. Enable cross-arch emulated builds in docker

docker run --privileged --rm linuxkit/binfmt:v0.8

4. Install yq

sudo snap install yq

5. Install essentials build packages

sudo apt-get install -y build-essential openssl libssl-dev libc6-dev clang libclang-dev ca-certificates

6. Install Rust

curl https://sh.rustup.rs -sSf | sh
# Choose nr 1 (default install)
source $HOME/.cargo/env

7. Install toml

cargo install toml-cli

8. Build and install embassy-sdk

cd ~/ && git clone https://github.com/Start9Labs/embassy-os.git
cd embassy-os/backend/
./install-sdk.sh

Cloning

Clone the project locally. Note the submodule link to the original project(s).

git clone https://github.com/Start9Labs/specter-desktop-wrapper.git
cd specter-desktop-wrapper
git submodule update --init --recursive

Building

To build the project, run the following commands:

make

Installing (on Embassy)

SSH into an Embassy device. scp the .s9pk to any directory from your local machine. Run the following command to install the package:

embassy-cli auth login
#Enter your embassy password then run:
embassy-cli package install /path/to/specter-desktop.s9pk

Verify Install

Go to your Embassy Services page, select specter-desktop and start the service.

#Done