Revert "Removed flatpak building ability since flatpak is not the pro…

…per distribution platform for this"

This reverts commit 919cd63.

.gitignore

@@ -2,5 +2,4 @@
 /.idea
 /.flatpak-builder
 /cargo-sources.json
-/repo
-flatpak-builder-tools/
+/repo

Cargo.toml

@@ -15,6 +15,7 @@ serde = { version = "1.0.215", features = ["derive"] }
 log = "0.4.22"
 env_logger = "0.11.5"
 shlex = "1.3.0"
+flatpak-unsandbox = "0.1.0"
 
 [dependencies.libcosmic]
 git = "https://github.com/pop-os/libcosmic.git"

io.github.cosmic_utils.Observatory.json

@@ -0,0 +1,44 @@
+{
+  "id": "io.github.cosmic_utils.observatory",
+  "runtime": "org.freedesktop.Platform",
+  "runtime-version": "24.08",
+  "sdk": "org.freedesktop.Sdk",
+  "sdk-extensions": ["org.freedesktop.Sdk.Extension.rust-stable"],
+  "command": "observatory",
+  "finish-args": [
+    "--share=ipc",
+    "--socket=fallback-x11",
+    "--socket=wayland",
+    "--device=dri",
+    "--filesystem=host",
+    "--filesystem=xdg-config/cosmic:ro",
+    "--talk-name=org.freedesktop.Flatpak"
+  ],
+  "build-options": {
+    "append-path": "/usr/lib/sdk/rust-stable/bin",
+    "env": {
+      "CARGO_HOME": "/run/build/observatory/cargo"
+    }
+  },
+  "modules": [
+    {
+      "name": "observatory",
+      "buildsystem": "simple",
+      "build-commands": [
+        "cargo --offline build --release --verbose",
+        "install -Dm0755 ./target/release/observatory -t /app/bin/",
+        "install -Dm0644 ./res/icons/hicolor/scalable/apps/icon.svg /app/share/icons/hicolor/scalable/apps/io.github.cosmic_utils.observatory.svg",
+        "install -Dm0644 ./res/metainfo.xml /app/share/metainfo/io.github.cosmic_utils.observatory.metainfo.xml",
+        "install -Dm0644 ./res/app.desktop /app/share/applications/io.github.cosmic_utils.observatory.desktop"
+      ],
+      "sources": [
+        {
+          "type": "git",
+          "url": "https://github.com/cosmic-utils/observatory.git",
+          "commit": "b8b33e79ea0f5eacac38e339444f5792d649d200"
+        },
+        "cargo-sources.json"
+      ]
+    }
+  ]
+}