Update Flatpak runtime and dependencies

Refs: #178

.gitignore

@@ -18,3 +18,4 @@ po/io.github.orontee.Argos.pot
 /argos_*.deb
 repo/
 /.python-version
+/requirements.txt

CONTRIBUTING.rst

@@ -75,25 +75,29 @@ To update translation files::
 Dependencies
 ============
 
-Python runtime dependencies can be added using `poetry add`. Once the
-code is ready, one must update two files used respectively for Flatpak
-and DEB packaging.
+Python runtime dependencies can be added using ``poetry add``. Once
+the code is ready, one must update two files used respectively for
+Flatpak and DEB packaging.
 
 * Flatpak builder install runtime dependencies described in the file
-  `argos-dependencies.json </argos-dependencies.json>`_. It has been
+  `pypi-dependencies.json </pypi-dependencies.json>`_. It has been
   generated from ``poetry``'s lock file using `flatpak-builder-tools
   <https://github.com/flatpak/flatpak-builder-tools>`_ but it's
   straightforward to maintain by hand.
 
-  (Note that when building, `meson` displays Python version, platform,
-  compatibility tags, etc.: All information required to choose the
-  right wheels.)
+  (Note that when building, ``meson`` displays Python version,
+  platform, compatibility tags, etc.: All information required to
+  choose the right wheels.)
 
 * DEB packages define runtime dependencies from the `debian/control
   </debian/control>`_ file.
 
 Build dependencies are listed in the `Containerfile </Containerfile>`_.
 
+Dependencies are locked from Poetry point of view. In order to list
+possible dependencies updates run ``poetry show --latest
+--top-level``.
+
 Tests
 =====
 

README.rst

@@ -167,6 +167,10 @@ user that will run Argos. Changes can be made using `Dconf Editor
 
   $ gsettings set io.github.orontee.Argos mopidy-base-url http://192.168.1.45
 
+(When running the Flatpak version, don't forget to enter the "sandbox"
+before running `gsettings` commands; See `CONTRIBUTING file
+</CONTRIBUTING.rst>`_ for details on this topic.)
+
 Some CLI options are provided (complete list can be obtained with
 ``argos --help``)::
 

io.github.orontee.Argos.json

@@ -1,7 +1,7 @@
 {
     "app-id" : "io.github.orontee.Argos",
     "runtime" : "org.gnome.Sdk",
-    "runtime-version" : "44",
+    "runtime-version" : "45",
     "sdk" : "org.gnome.Sdk",
     "command" : "argos",
     "finish-args" : [
@@ -23,7 +23,7 @@
         "*.a"
     ],
     "modules" : [
-        "argos-dependencies.json",
+        "pypi-dependencies.json",
         {
             "name": "webp-pixbuf-loader",
             "buildsystem": "meson",