Installing apps

Applications on LuminusOS come from Flathub as Flatpaks: sandboxed, independent from the base system, and always current.

With GNOME Software

Open Software, search, click install. That is the whole guide.

From the terminal

flatpak search obsidian
flatpak install flathub md.obsidian.Obsidian
flatpak update

Why Flatpak?

• The OS stays clean. Apps never modify the base system, so updates and rollbacks of the OS never touch your apps, and vice versa.
• Sandboxing. Apps run with limited permissions you can inspect and adjust in Settings → Apps.
• Always current. App updates come straight from Flathub, independent of OS releases.

What about CLI tools and development?

For development environments, use Toolbox containers, included out of the box:

toolbox create
toolbox enter
sudo dnf install gcc make   # inside the toolbox, mutable as usual

Your home directory is shared with the toolbox, the host system stays immutable.