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Flatpak#

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Flatpak is an app packaging solution for Linux that solves the issue of differences between distributions and allows a single app to run on all Linux desktops. +This means not just different distros but also both older and newer distros, so if you were stuck using an old version of Avogadro until now, give the flatpak a try.

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The Avogadro team is aiming for flatpak to become the primary method of distribution of Avogadro 2 on Linux. +(Though distribution via other routes will of course continue.)

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As well as the usual benefits of flatpaks such as stability and the possibility for sandboxing, by using the Avogadro flatpak you can easily keep it up-to-date with the latest versions via updates.

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If you’ve never used flatpak before, the first step is to make sure you have the flatpak package, but you likely already do – it is installed by default on most modern distros.

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Avogadro is distributed through Flathub on two branches: a stable branch, which contains the most recent release, and a beta branch, which is similar to the “nightly” versions on other platforms and has the latest features and bug fixes.

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Stable#

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In many cases, flatpak is set up with Flathub out-of-the-box. +If not, and you haven’t set it up yourself manually before, you can follow the instructions here.

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Once flatpak is set up, you can easily install Avogadro from Flathub in one of two ways:

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  1. Through your distro’s “app store” (e.g. KDE Discover or GNOME Software) – just search for Avogadro, or click on install on the Flathub page

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  2. On the command line using:

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flatpak install org.openchemistry.Avogadro2
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After installation, Avogadro should show up in your applications menu/drawer like any other app. +If not, you can always run a flatpak using:

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flatpak run org.openchemistry.Avogadro2
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Tip

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By default, flatpak works on the system installation (see the flatpak usage guide), just like apt, dnf and friends. +This means that to add repos and install Avogadro using the commands above, or using your distro’s software manager, you may need sudo privileges.

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On the whole it is recommended to do things this way, but it might not always be possible. +To do things just for your user without sudo privileges, use the flatpak command with the --user flag, e.g.

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flatpak --user install org.openchemistry.Avogadro2
+flatpak --user run org.openchemistry.Avogadro2
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Beta#

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Though our nightly builds are generally pretty robust, it is not allowed to distribute nightly, potentially unstable builds over Flathub, so instead we are providing an “almost-nightly” beta branch to fulfil the same purpose. +It will receive the latest updates at regular intervals.

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Warning

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While it is possible, it is strongly recommended that you do not have both the stable and beta version of Avogadro installed at the same time, to avoid complications.

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To get the beta branch, you will first have to add the flathub-beta repository, which is located at https://flathub.org/beta-repo/flathub-beta.flatpakrepo.

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On the command line this is done using:

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flatpak remote-add --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
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If using a GUI software manager to manage your flatpaks, they often also provide a way to add a repository.

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Once the repo has been added, you can install the Avogadro beta flatpak in the usual way, done on the command line using:

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flatpak install org.openchemistry.Avogadro2//beta
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The flatpak can then be run in the usual way.

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