Mattermost - is private cloud chat. And this is a native SailfishOS client for Mattermost. 
This is early alpha version. The client is in active (not really in active) development.
What is done:

The package is not indended for direct installation by the end users. The package is provided for resolving application dependency on Mapbox GL Native library (qmapboxgl). It used by Mapbox GL Native bindings for Qt QML.

The package is not indended for direct installation by the end users. The package is provided for resolving application dependency on Mapbox GL QML plugin.

These bindings are mainly developed for supporting Mapbox GL Native for platforms that lack Qt/QML 5.9 support, such as Sailfish OS. The code is based on QtLocation 5.9 Mapbox GL plugin, Qt/QML bindings developed as a part of Mapbox GL Native by Mapbox team before merging QML bindings with QtLocation. The API of the bindings is developed to make it simple to use by map application developers.

OSM Scout Server is a native offline maps provider. This server can be used as a drop-in replacement for online map services providing map tiles, search, and routing. As a result, together with the map client, a full offline solution is available for map search and navigation (car, bicycle, and walking).

The server can be used to provide:

Thanks to @abmyii for his port of this game to Ubuntu Touch.

Tux Racer lets you take on the role of Tux the Linux Penguin as he races down steep, snow-covered mountains. Enter cups and compete to win the title! Tux Racer includes a variety of options for gameplay, including the ability to race courses in fog, at night, and under high winds.

OpenEXR is a high dynamic-range (HDR) image file format developed by
Industrial Light & Magic for use in computer imaging applications. This package
contains a set of utilities to work with this format.

Base library for Industrial Light & Magic software (OpenEXR).

* Half is a class that encapsulates ILM 16-bit floating-point
format.

* IlmThread is a thread abstraction library for use with OpenEXR and
other software packages. It currently supports pthreads and
Windows threads.

* Imath implements 2D and 3D vectors, 3x3 and 4x4 matrices,
quaternions and other useful 2D and 3D math functions.

* Iex is an exception-handling library.

Tsumego allows you to play problems of the Go game, if you have some in SGF file format.

There are various sources for sgf files around.

This is an updated version of the original Tsumego by @chimrod. As the sources have vanished I can only update what is in python and QML.

Installing this will uninstall their package.

• original Software: https://openrepos.net/content/chimrod/tsumego

SailTuner

SailTuner is a chromatic multi-temperament instrument tuner for Sailfish OS.

It gets audio data from microphone, find the fundamental frequency, and then display the note, the octave and the deviation according to note reference and temperament.

It can also play a note, choosed with a scale flickable by user.

Pitch detection algorithm

The algorithm for fundamental frequency detection:

Terminal file manager, like nnn.  Seems like development has stopped, so may be better off with nnn at this point, but I'm just testing things out, so thought I'd share...  Maybe someone can pick it back up.

Not my work; I just compiled on-device with cargo-rpm so I could share...  

aarch64 version.

Hunter page - https://github.com/rabite0/hunter