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markqvist / Sideband

LXMF client for Android, Linux and macOS allowing you to communicate with people or LXMF-compatible systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, or anything else Reticulum supports.
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android lora lxmf mesh p2p packet-radio reticulum rns

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Sideband

Sideband is an extensible LXMF messaging client, situational awareness tracker and remote control and monitoring system for Android, Linux, macOS and Windows. It allows you to communicate with other people or LXMF-compatible systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, Encrypted QR Paper Messages, or anything else Reticulum supports.

Screenshot

Sideband is completely free, end-to-end encrypted, permission-less, anonymous and infrastructure-less. Sideband uses the peer-to-peer and distributed messaging system LXMF. There is no sign-up, no service providers, no "end-user license agreements", no data theft and no surveillance. You own the system.

This also means that Sideband operates differently than what you might be used to. It does not need a connection to a server on the Internet to function, and you do not have an account anywhere. Please read the Guide section included in the program, to get an understanding of how Sideband differs from other messaging systems.

Functionality & Features

Sideband provides many useful and interesting functions, such as:

Sideband is fully compatible with other LXMF clients, such as MeshChat, and Nomad Network. The Nomad Network client also allows you to easily host Propagation Nodes for your LXMF network, and more.

Installation

Sideband can run on most computing devices, but installation methods vary by device type and operating system. For installation instructions, please find the relevant section below.

On Android

For your Android devices, you can install Sideband through F-Droid, by adding the Between the Borders Repo, or you can download an APK on the latest release page. Both sources are signed with the same release keys, and can be used interchangably.

After the application is installed on your Android device, it is also possible to pull updates directly through the Repository section of the application.

On Linux

On all Linux-based operating systems, Sideband is available as a pipx/pip package. This installation method includes desktop integration, so that Sideband will show up in your applications menu and launchers.

You will first need to install a few dependencies for audio messaging and Codec2 support to work:

# For Debian, Ubuntu and derivatives
sudo apt install pipx python3-pyaudio python3-dev build-essential libopusfile0 portaudio19-dev codec2 xclip xsel

# For Manjaro and derivatives
pamac install python-pipx python-pyaudio base-devel codec2 xclip xsel

# For Arch and derivatives
sudo pacman -Sy python-pipx python-pyaudio base-devel codec2 xclip xsel

Once those are installed, install the Sideband application itself:

# Finally, install Sideband using pipx:
pipx install sbapp

After installation, you can now run Sideband in a number of different ways:

# If this is the first time installing something with pipx,
# you may need to use the following command, to make your
# installed applications available. You'll probably need
# to close and reopen your terminal after this.
pipx ensurepath

# The first time you run Sideband, you will need to do it
# from the terminal:
sideband

# At the first launch, it will add an application icon
# to your launcher or apps menu. You may need to log out
# of your session, and back in for the application to
# show up in your launcher, depending on your distro.

# You can also run Sideband in headless daemon
# mode, for example as a telemetry collector:
sideband --daemon

# You can also run Sideband with more verbose
# log output enabled:
sideband -v

You can also install Sideband in various alternative ways:

# Install Sideband via pip instead of pipx:
pip install sbapp

# Or, if pip is externally managed:
pip install sbapp --break-system-packages

# Or, if you intend to run Sideband in headless
# daemon mode, you can also install it without
# any of the normal UI dependencies:
pip install sbapp --no-dependencies

# In the above case, you will still need to
# manually install the RNS and LXMF dependencies:
pip install rns lxmf

On Raspberry Pi

You can install Sideband on all Raspberry Pi models that support 64-bit operating systems, and can run at least Python version 3.11. Since some of Sideband's dependencies don't have pre-built packages ready for 64-bit ARM processors yet, you'll need to install a few extra packages, that will allow building these while installing.

Aditionally, the pycodec2 package needs to be installed manually. I have provided a pre-built version, that you can download and install with a single command, or if you don't want to trust my pre-built version, you can build and install it from source yourself.

The install instructions below assume that you are installing Sideband on 64-bit Raspberry Pi OS (based on Debian Bookworm). If you're running something else on your Pi, you might need to modify some commands slightly. To install Sideband on Raspberry Pi, follow these steps:

# First of all, install the required dependencies:
sudo apt install python3-pip python3-pyaudio python3-dev python3-cryptography build-essential libopusfile0 libsdl2-dev libavcodec-dev libavdevice-dev libavfilter-dev portaudio19-dev codec2 libcodec2-1.0 xclip xsel

# If you don't want to compile pycodec2 yourself,
# download the pre-compiled package provided here
wget https://raw.githubusercontent.com/markqvist/Sideband/main/docs/utilities/pycodec2-3.0.1-cp311-cp311-linux_aarch64.whl

# Install it:
pip install ./pycodec2-3.0.1-cp311-cp311-linux_aarch64.whl --break-system-packages

# You can now install Sideband
pip install sbapp --break-system-packages

# Restart your Raspberry Pi
sudo reboot

# Everything is ready! You can now run Sideband
# from the terminal, or from the application menu
sideband

On macOS

A DMG file containing a macOS app bundle is available on the latest release page.

Please note that audio messaging functionality isn't supported on macOS yet. Please support the development if you'd like to see this feature added faster.

Alternatively, you can install Sideband with pip3 on macOS:

# Install Sideband and dependencies on macOS:
pip3 install sbapp

# Run it:
python3 -m sbapp.main

# If you add your pip install location to
# the PATH environment variable, you can
# also run Sideband simply using:
sideband

If you have not already installed Python and pip3 on your macOS system, download and install the latest version first.

On Windows

Even though there is currently not an automated installer, or packaged .exe file for Sideband on Windows, you can still install it through pip. If you don't already have Python installed, download and install the latest version of Python.

Please note that audio messaging functionality isn't supported on Windows yet. Please support the development if you'd like to see this feature added faster.

Important! When asked by the installer, make sure to add the Python program to your PATH environment variables. If you don't do this, you will not be able to use the pip installer, or run the sideband command.

When Python has been installed, you can open a command prompt and install sideband via pip:

pip install sbapp

The Sideband application can now be launched by running the command sideband in the command prompt. If needed, you can create a shortcut for Sideband on your desktop or in the start menu.

When running Sideband for the first time, a default Reticulum configuration file will be created, if you don't already have one. If you don't have any existing Reticulum connectivity available locally, you may want to edit the file, located at C:\Users\USERNAME\.reticulum\config and manually add an interface that provides connectivity to a wider network. If you just want to connect over the Internet, you can add one of the public hubs on the Reticulum Testnet.

Paper Messaging Example

You can try out the paper messaging functionality by using the following QR-code. It is a paper message sent to the LXMF address 6b3362bd2c1dbf87b66a85f79a8d8c75. To be able to decrypt and read the message, you will need to import the following base32-encoded Reticulum Identity into the app:

3BPTDTQCRZPKJT3TXAJCMQFMOYWIM3OCLKPWMG4HCF2T4CH3YZHVNHNRDU6QAZWV2KBHMWBNT2C62TQEVC5GLFM4MN25VLZFSK3ADRQ=

You can import the identity into Sideband in the Encryption Keys part of the program. After the you have imported the identity, you can scan the following QR-code and open it in the app, where it will be decrypted and added to your messages.

You can also find the entire message in this link:

lxm://azNivSwdv4e2aoX3mo2MdTAozuI7BlzrLlHULmnVgpz3dNT9CMPVwgywzCJP8FVogj5j_kU7j7ywuvBNcr45kRTrd19c3iHenmnSDe4VEd6FuGsAiT0Khzl7T81YZHPTDhRNp0FdhDE9AJ7uphw7zKMyqhHHxOxqrYeBeKF66gpPxDceqjsOApvsSwggjcuHBx9OxOBy05XmnJxA1unCKgvNfOFYc1T47luxoY3c0dLOJnJPwZuFRytx2TXlQNZzOJ28yTEygIfkDqEO9mZi5lgev7XZJ0DvgioQxMIyoCm7lBUzfq66zW3SQj6vHHph7bhr36dLOCFgk4fZA6yia2MlTT9KV66Tn2l8mPNDlvuSAJhwDA_xx2PN9zKadCjo9sItkAp8r-Ss1CzoUWZUAyT1oDw7ly6RrzGBG-e3eM3CL6u1juIeFiHby7_3cON-6VTUuk4xR5nwKlFTu5vsYMVXe5H3VahiDSS4Q1aqX7I

On operating systems that allow for registering custom URI-handlers, you can click the link, and it will be decoded directly in your LXMF client. This works with Sideband on Android.

Support Sideband Development

You can help support the continued development of open, free and private communications systems by donating via one of the following channels:


Development Roadmap

License

Unless otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Permission is hereby granted to use Sideband in binary form, for any and all purposes, and to freely distribute binary copies of the program, so long as no payment or compensation is charged or received for such distribution or use.

Device screenshots generated with deviceframes. Thanks!