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Getting started with Flatpak

Flatpak

Fedora is a distribution that does not shy away from emerging technology (after all, one of its founding principles is First). So it comes as no surprise that Fedora is on the leading edge of a revolutionary new software package system. This is not the first time Flatpak has been mentioned on the Magazine, but since Flatpak is so new, a lot has changed since last time.

What is Flatpak?

Flatpak can roughly be described as a modern replacement for RPMs, but its impact is far more significant than simply offering a new packaging format. Before we go into what Flatpak offers, first consider the current software delivery flow present in Fedora today.

1. Upstream authors work away at a new version, ultimately producing an archive containing source code (frobnicate-0.4.2.tar.gz)
2. Distribution packagers receive a notice that their upstream team has released a new version
3. Distribution packagers download the source archive, and build the new version for all supported distributions, producing a binary RPM (frobnicate-0.4.2-1.fc26.x86_64.rpm) for each distribution
4. Distribution packagers submit the binary RPMs to the appropriate update system, pushing the RPMs through the workflow so that…
5. Finally a user can download the new version of frobnicate (dnf upgrade frobnicate)

This process from start to finish can take anywhere from a few days to months or more. Flatpak provides tooling to both the upstream developer and the end user that dramatically shortens the time between an upstream release and a binary arriving in a user’s dnf update. Now let’s revisit frobnicate, but with Flatpak in place both with the upstream developer and the end user. Continue reading

Flatpak

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