fix: Support Builder by switching to online Flatpak build

.github/workflows/ci.yml

@@ -33,6 +33,6 @@ jobs:
     - uses: bilelmoussaoui/flatpak-github-actions/flatpak-builder@v6
       with:
         bundle: exercise-timer.flatpak
-        manifest-path: build-aux/xyz.safeworlds.hiit.Devel.yml
+        manifest-path: build-aux/xyz.safeworlds.hiit.Devel.json
         run-tests: true
         cache-key: flatpak-builder-${{ github.sha }}

build-aux/xyz.safeworlds.hiit.Devel.json

@@ -0,0 +1,51 @@
+{
+    "id" : "xyz.safeworlds.hiit.Devel",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "46",
+    "sdk" : "org.gnome.Sdk",
+    "sdk-extensions" : [
+        "org.freedesktop.Sdk.Extension.rust-stable",
+        "org.freedesktop.Sdk.Extension.llvm16"
+    ],
+    "command" : "hiit",
+    "finish-args" : [
+        "--share=ipc",
+        "--socket=fallback-x11",
+        "--socket=wayland",
+        "--socket=pulseaudio",
+        "--device=dri",
+        "--env=RUST_LOG=hiit=debug",
+        "--env=G_MESSAGES_DEBUG=none",
+        "--env=RUST_BACKTRACE=1"
+    ],
+    "build-options" : {
+        "append-path" : "/usr/lib/sdk/rust-stable/bin:/usr/lib/sdk/llvm16/bin",
+        "build-args": [
+            "--share=network"
+        ],
+        "prepend-ld-library-path" : "/usr/lib/sdk/llvm16/lib",
+        "env" : {
+            "CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER" : "clang",
+            "CARGO_REGISTRIES_CRATES_IO_PROTOCOL" : "sparse",
+            "CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS" : "-C link-arg=-fuse-ld=/usr/lib/sdk/rust-stable/bin/mold",
+            "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER" : "clang",
+            "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUSTFLAGS" : "-C link-arg=-fuse-ld=/usr/lib/sdk/rust-stable/bin/mold"
+        }
+    },
+    "modules" : [
+        {
+            "name" : "hiit",
+            "buildsystem" : "meson",
+            "run-tests" : true,
+            "config-opts" : [
+                "-Dprofile=development"
+            ],
+            "sources" : [
+                {
+                    "type" : "dir",
+                    "path" : "./"
+                }
+            ]
+        }
+    ]
+}