= flatpak =

 * https://docs.flatpak.org/en/latest/introduction.html
a system for building, distributing, and running sandboxed desktop applications on Linux.

Flatpak allows applications to be installed and run on virtually any Linux distribution. This includes non-GNU distributions, systemd-free distributions, distributions with a read-only operating system (OS), and various architectures without the developer needing the relevant hardware on hand.

Rootless install: elevated privileges are not required when installing a Flatpak application or a runtime.

 * https://docs.flatpak.org/en/latest/under-the-hood.html
Flatpak is built on top of a technology called OSTree, which is influenced by and very similar to the Git version control system.

 * https://docs.flatpak.org/en/latest/first-build.html

== Slackbuilds ==
 * https://slackbuilds.org/repository/15.0/desktop/flatpak/
This requires: xdg-desktop-portal-gtk, bubblewrap, ostree, appstream-glib

== Slackware - Slackpkg ==
{{{#!highlight sh 
sudo slackpkg update 
sudo slackpkg install appstream-glib ostree xdg-desktop-portal-gtk bubblewrap
sudo slackpkg install flatpak flatpak-builder
# https://flathub.org/apps/org.inkscape.Inkscape
flatpak --user remote-add --if-not-exists flathub \
     https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak install flathub org.inkscape.Inkscape
flatpak run org.inkscape.Inkscape
flatpak list
flatpak info org.inkscape.Inkscape
flatpak list --columns=name,size
flatpak remove org.inkscape.Inkscape
}}}

== debian ==
{{{#!highlight sh
sudo apt install flatpak flatpak-builder
flatpak --user remote-add --if-not-exists flathub \
     https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak install org.supertux.SuperTux-Milestone1
flatpak run org.supertux.SuperTux-Milestone1
}}}