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[[!meta title="Download and install"]]

## Source code

Obnam source code is distributed via the git version control system.
There are two repositories, which are intended to be identical:

* GitLab: <https://gitlab.com/larswirzenius/obnam>
* git.liw.fi: <http://git.liw.fi/obnam2>

Use either according to preference.

## Build and install from source

Obnam is written in the [Rust language](https://www.rust-lang.org/),
and you need the Rust toolchain and the `cargo` tool installed. If you
have that installed and configured, you can build and install Obnam
from source as follows:

~~~sh
git clone https://gitlab.com/larswirzenius/obnam
cd obnam
cargo build
cargo install --path=.
~~~

The `debian/control` file lists the necessary packages under the
`Depends` and `Build-Depends` headings.

## Debian

There is a Debian package built by CI from every commit. It works on
Debian 10 (buster) and later. We have a script to install it:

~~~sh
curl -s https://gitlab.com/larswirzenius/obnam/-/raw/main/install-debian.sh | sudo bash
~~~

If you'd rather not download a script from the Internet and run it as
root (kudos!), you can do the same steps manually. Add the following
to `/etc/apt/sources.list.d/obnam.list`:

~~~
deb http://ci-prod-controller.vm.liw.fi/debian unstable-ci main
~~~

Then save the following PGP public key as
`/etc/apt/trusted.gpg.d/obnam.asc`:

~~~
-----BEGIN PGP PUBLIC KEY BLOCK-----

mQINBFrLO7kBEADdz6mHstYmKU5Dp6OSjxWtWaqTDOX1sJdmmaIK/9EKVIH0Maxp
5kvVO5G6mULLAjv/kLG0MxasHPrq8I2A/y8AqKAGVL8QelwLjQMIFZ30/VbGQPHS
+T5TZXEnoQtNce1GUhFwJ38ZyjjwHBFV9tSec7rZ2Q3YeM3nNnGPf6DacXGfEOPO
HIN4sXAN2hzNXNjKRzTIvxQseb6nr7afUh/SlZ3yhQOCrIzmYlD7tP9WJe7ofL0p
JY4pDQYw8rT6nC2BE/ioemh84kERCT1vCe+OVFlSRuMlqfEv+ZpKQ+itOmPDQ/lM
jpUm1K2hrW/lWpxT/ZxHKo/w1K36J5WshgMZxfUu5BMCL9LMqMcrXNhNjDMfxDMM
3yBPOvQ4ls6fecOZ/bsFo1p8VzMk/w/eG8vPs5yuNa5XxN95yFMXoOHGb5Xbu8D4
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dGc/Hp6CbqdshMoWlwpFskttoVDxQG5OAobuZl5XyzGcmja1lT85RGkZFfbca0IZ
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31S1baYKKVj5QIMsi7Dq8ls3BBXuPCE+xTSaNmGWjes2t9pPidcRvxsksCLY1qgw
P1GFXBeMkBQ29kBP87SUL15SIk7OiQLlEURCy5iRls5rt/YEsdEpRWIb0Tm5Nrjv
2M3VM+iBhfNXTwj0rJ34mlycF1qQmA7YcTEobT7z587GPY0VWzBpQUnEQj7rQWPM
cDYY0b+I6kQ8VKOaL4wVAtE98d7HzFIrIrwhTKufnrWrVDPYsmLZ+LPC1jiF7JBD
SR6Vftb+SdDR9xoE1yRuXbC6IfoW+5/qQNrdQ2mm9BFw5jOonBqchs18HTTf3441
6SWwP9fY3Vi+IZphPPi0Gf85oMStgnv/Wnw6LacEL32ek39Desero/D8iGLZernK
Q2mC9mua5A/bYGVhsNWyURNFkKdbFa+/wW3NfdKYyZnsSfo+jJ2luNewrhAY7Kod
GWXTer9RxzTGA3EXFGvNr+BBOOxSj0SfWTl0Olo7J5dnxof+jLAUS1VHpceHGHps
GSJSdir7NkZidgwoCPA7BTqsb5LN
=dXB0
-----END PGP PUBLIC KEY BLOCK-----
~~~


After that run the following commands to install Obnam:

~~~sh
apt update
apt install obnam
~~~

## Other systems

The Obnam developers all use Debian on the 64-bit Intel
architecture, and don't provide installation packages for other kinds
of systems (other architectures, other operating systems). If you'd
like to help with that, it would be very much welcome!