Flatpak writes files for installed applications with the full Flatpak (store) path. This patch makes it write just "flatpak", using Flatpak from PATH. This is similar to the NixOS [0] patch, updated for Flatpak 1.12.1

[0] https://github.com/NixOS/nixpkgs/blob/bf4167861d0f864b0fc457778d54feb4a2675ea2/pkgs/development/libraries/flatpak/use-flatpak-from-path.patch

diff --git a/common/flatpak-dir.c b/common/flatpak-dir.c
index 80ff5e5f..0c111c31 100644
--- a/common/flatpak-dir.c
+++ b/common/flatpak-dir.c
@@ -7134,8 +7134,7 @@ export_desktop_file (const char         *app,
         flatpak = FLATPAK_BINDIR "/flatpak";

       g_string_append_printf (new_exec,
-                              "%s run --branch=%s --arch=%s",
-                              flatpak,
+                              "flatpak run --branch=%s --arch=%s",
                               escaped_branch,
                               escaped_arch);

@@ -8467,8 +8466,8 @@ flatpak_dir_deploy (FlatpakDir          *self,
       if ((flatpak = g_getenv ("FLATPAK_BINARY")) == NULL)
         flatpak = FLATPAK_BINDIR "/flatpak";

-      bin_data = g_strdup_printf ("#!/bin/sh\nexec %s run --branch=%s --arch=%s %s \"$@\"\n",
-                                  flatpak, escaped_branch, escaped_arch, escaped_app);
+      bin_data = g_strdup_printf ("#!/bin/sh\nexec flatpak run --branch=%s --arch=%s %s \"$@\"\n",
+                                  escaped_branch, escaped_arch, escaped_app);
       if (!g_file_replace_contents (wrapper, bin_data, strlen (bin_data), NULL, FALSE,
                                     G_FILE_CREATE_REPLACE_DESTINATION, NULL, cancellable, error))
         return FALSE;
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<tr><td><span title='2024-04-18 20:46:58 -0400'>2024-04-18</span></td><td><a href='/guix/commit/NEWS?id=e0d920b7db3f71c02627d698676339218e03ad63'>news: Add entry for nss-certs being added to %base-packages.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-03-28 20:13:59 -0400'>2023-03-28</span></td><td><a href='/guix/commit/NEWS?id=c94a7d41c76f520e56a1304bd7fb3cbf3579fc52'>NEWS: Mention new rpm format.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-12-18 01:17:15 +0100'>2022-12-18</span></td><td><a href='/guix/commit/NEWS?id=a8f9579348aae58b68b25004cfd28aa7407db802'>Update NEWS.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-12-17 19:15:50 +0100'>2022-12-17</span></td><td><a href='/guix/commit/NEWS?id=239bfe2ec1fa3b4305500211e6cade6e4bda2a62'>Update NEWS.</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2022-12-02 23:20:54 +0100'>2022-12-02</span></td><td><a href='/guix/commit/NEWS?id=7ef490e3fc94e0b9025c98797fc014f07e21c4cc'>Update NEWS.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-11-23 17:22:11 +0100'>2022-11-23</span></td><td><a href='/guix/commit/NEWS?id=7a2082023ad9c7479bfedf39537606a088222d48'>NEWS: Update it.</a><span class='msg-avail'>...</span></td><td>Jonathan Brielmaier</td></tr>
<tr><td><span title='2022-11-16 14:28:09 -0500'>2022-11-16</span></td><td><a href='/guix/commit/NEWS?id=e06df550e21d596b65dc3e5b3e99152be58372b3'>Update NEWS.</a></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-10-13 10:49:19 +0200'>2022-10-13</span></td><td><a href='/guix/commit/NEWS?id=d2ca9334a304ab5837b62968b77bbbab34af7afe'>NEWS: Update it.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-10-07 10:11:13 -0400'>2022-10-07</span></td><td><a href='/guix/commit/NEWS?id=6e3dab4737832a78de07dd805a4057eb5f4cfcf3'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-28 09:06:10 +0200'>2022-09-28</span></td><td><a href='/guix/commit/NEWS?id=70a593242e6b288a0348154f09c4ddbc732463d8'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-09-26 09:47:10 +0200'>2022-09-26</span></td><td><a href='/guix/commit/NEWS?id=4b551518d0a14a6ac1655bde3d23f6d189f49490'>NEWS: Update it.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-09-24 18:08:05 +0200'>2022-09-24</span></td><td><a href='/guix/commit/NEWS?id=b814bdf441bf8863b3b6bd846c21f23c2ac2d511'>Update NEWS.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-23 00:50:17 -0400'>2022-09-23</span></td><td><a href='/guix/commit/NEWS?id=a57c4eff6bbdcff79294fa15ecb95ab2b3c55bb4'>Update NEWS.</a></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-19 09:06:47 +0200'>2022-09-19</span></td><td><a href='/guix/commit/NEWS?id=41b30f40beb74f8d45cff167a8b62b8f88cf26c4'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-09-16 10:01:56 +0200'>2022-09-16</span></td><td><a href='/guix/commit/NEWS?id=c0d25bef71af32dfb98e93ddcb82d0003c8714f8'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-09-15 16:57:39 -0400'>2022-09-15</span></td><td><a href='/guix/commit/NEWS?id=011dab59d80690d20875d43e73c3cfd8af95af99'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-09-14 23:57:56 -0400'>2022-09-14</span></td><td><a href='/guix/commit/NEWS?id=839950c4a9925bf3d7108cb8533be37b185fb8bd'>Update NEWS.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>