Apps

• Native Spotify
• Hutspot
• Use Librespot to play songs
• Help links
• Qt 6 experimental
• Early access to Qt 6 libraries and apps
• Qt 6 / KDE Apps
• Dark theme
• Revert modifications

Native Spotify

Hutspot

Overview

Hutspot is a native SailfishOS-app that acts as a Spotify-controller. It enables you to browse/search albums, artists, playlists and tracks. Playing the music is done on a 'connected' device. It requires a premium Spotify account.

Documentation

Documentation for the app can be found on https://sailfish-spotify.github.io/hutspot/ . The source code is also accessible under https://github.com/sailfish-spotify/hutspot

Installation

Hutspot is available in the Chum-repositories. To see it, you need to disable "Show only applications" in the Chum GUI app.

Fix authentication issue

The current version in Chum has an issue with the authentication, where you would need to authenticate every time you launch the app. To fix this issue,  use a terminal app to copy the hutspot.desktop file to /etc/sailjail/applications:

cp /usr/share/applications/hutspot.desktop /etc/sailjail/applications

After that, use a text editor (for example nano) to add the following lines to the file:

[X-Sailjail]
Sandboxing=Disabled

Use Librespot to play songs

Overview

librespot is an open source client library for Spotify. It enables applications to use Spotify's service to control and play music and to act as a Spotify Connect receiver. Using this terminal-application in combination with a Spotify-controller like Hutspot, you can play songs from Spotify on your SailfishOS-Device without using the Android-app from Spotify itself. The source code is available on GitHub

Installation

Prebuilt package

ATTENTION: Currently (22.1.2026) this package DOES NOT work with 32-Bit devices (e.g. Sony Xperia XA2 series, Xperia 10,...). If you want to use Librespot on these devices, you might try build it yourself (see tutorial below)(no guarantees it will work, not tested by the author of this wiki)

There is a prebuilt package which a user uploaded to the forum. You can download it here (just click on     librespot-0.6.0-1.31.1.bso.aarch64.rpm and it will download) . If you want to change the configuration, you can edit the command in the file /usr/lib/systemd/user/librespot.service.  This package installs Librespot as a service, so you can start and stop it from Hutspot directly.

Building it yourself

You can also get librespot directly an build it on your device. First, you need to install Rust. To do this, open a terminal and execute 

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

After the installation has finished,  you need to restart your session. This can be done by just typing bash and hitting enter. You also need to install a few development packages. To install these, type in a terminal

devel-su pkcon refresh
devel-su pkcon install gcc git alsa-lib-devel -y

Now that you have everything necessary installed, you can get the source code from GitHub

git clone https://github.com/librespot-org/librespot
cd librespot/

After that, you can now build your application using cargo:

cargo build --release --features "alsa-backend pulseaudio-backend"

Usage

Controlling Librespot with Hutspot

If you have installed Librespot as a service, you can control Librespot right from the GUI of Hutspot. To do this, tap on the Hamburger-menu (four lines)  in the bottom right corner of Hutspot and navigate to Settings. There, you need to activate "Control Librespot" (Like seen in  this screenshot ). This will start Librespot with Hutspot and terminate it when Hutspot is closed.  On this page, you can also start/stop Librespot manually. This is also possible from the Pull-Down-Menu of the Devices-page (Like seen here).

Starting Librespot from the terminal

You can also start Librespot from the terminal, where you can make your configuration directly. If you have built Librespot on your own, this is the only option to start Librespot. In this case, you need to execute Librespot from the path where you built it. The executeable is typically stored under <PATH TO LIBRESPOT SOURCE>/target/release/.  For more overview of which options are possible for Librespot, you can look here.

Generally, you would want the --username option,  the --cache option (so you don't need to type in your password everytime), the -n option to give the instance a name and the --backend option (which needs to be set to pulseaudio).

An example command could look like this:

/home/defaultuser/librespot/target/release/librespot --cache /home/defaultuser/.cache/librespot --username USERNAME -b 320 -n MyAwesomeLibrespotBuild --backend pulseaudio --device-type smartphone

Setting Librespot as the current device

If Librespot is running, you can use it to play songs from Spotify via Hutspot. To do this, open Hutspot and navigate to the Devices-page. All connected Spotify devices will show up there (which includes Librespot-instances). To use a device, long press on the device and choose "Set as active device" (first option in the menu). Congratulations, you can now play, pause and skip songs via Hutspot which will be played using your SailfishOS-smartphone.
Notice:  The volume of Librespot can't be controlled with the volume-buttons on your device. For that, you need to use the volume-slider in Hutspot.

Help links

If you need help, here are a few useful links to various posts in the SailfishOS-Forum:

• https://forum.sailfishos.org/t/hutspot-for-aarch64/8231
  
• https://forum.sailfishos.org/t/cargo-install-error-this-is-the-stub-cargo-if-you-see-this-scratchbox2-is-not-working/11478
  

Qt 6 experimental

Early access to Qt 6 libraries and apps

Currently (January 2026) the repositories need to be added "manually" from a terminal session either from the Terminal application or an SSH connexion.

Follows an example of how to install the application Angelfish, a Chrome-based web-browser that is fairly modern (and all its dependencies)

First you need to add two repositories:

devel-su ssu ar "piggz-qt6-apps" "https://repo.sailfishos.org/obs/home:/piggz:/qt6apps/sailfish_latest_aarch64/"
devel-su ssu ar "piggz-qt6sb2" "https://repo.sailfishos.org/obs/home:/piggz:/qt6sb2/sailfish_latest_aarch64/"

Then you have to reload your repositories catalogs, and install qt-runner-qt6 and angelfish:

devel-su pkcon refresh
devel-su pkcon install qt-runner-qt6 angelfish

You'll get 2 new icons:

• one green with big Qt letters, it's Qt-runner;
• and a blue and yellow fish, it's Angelfish.

First open Qt-runner and sets the "Override DPI" setting between 280 and 320 (with a Sony Xperia 10 III, I use 300). Apply your choice swyping from left to right.

Then you can start Angelfish and browse the web.

The following page lists more Qt 6 / KDE Plasma mobile applications available.

Qt 6 / KDE Apps

A number of apps are available

amber-mpris-qt6

angelfish

kasts

kde-itinerary

keysmith

kf6-mpvqt

ktrip

libass

mpv

qcoro

qmlkonsole

supersonik

tokodon

wave

Dark theme

When using OLED devices, such as the Sony Xperia 10 II and III, using dark (if not completely black) backgrounds saves a lot of battery. It is because with OLED screens, each pixels are individual LED that can be switched on or off. A black pixel is really a switched-off light. The more black pixels you display the less your screen consumes energy (and the screen is the biggest consumer part of your phone).

KDE Qt 6 applications comes with the Breeze theme in light version, meaning with black letters on dark background. This is the standard because it mimics paper and is read faster by non trained people. A dark version of the Breeze theme exists, and you can install it.

1. You'll have to download the definition file : https://github.com/KDE/qqc2-breeze-style/blob/master/style/BreezeDark.colors
2. Then copy it to the /home/defaultuser/.config/ folder and renamed it “kdeglobals”. This can be done using the FileManager, or the mv command in a terminal.
   

Now if you start a Qt 6 application again, like Angelfish, it will be using a dark background.

It exists other themes for Qt 6 with dark variations (like Material or Universal), but icons are not installed for them.

Revert modifications

To remove your installations you can use the following commands:

# remove packages
devel-su pkcon remove angelfish qt-runner-qt6
# remove repos
devel-su ssu rr piggz-qt6-apps
devel-su ssu rr piggz-qt6sb2
# update package cache after remove, not really needed
devel-su pkcon refresh