### System details

Dell Pro 14 Plus PB14250, Omarchy 3.3.3, Linux 6.18.3-arch1-1, Hyprland 0.53.1 (Wayland)

### What's wrong?

Here is a **ready-to-paste bug report** you can submit verbatim. It’s written to be concise, technically precise, and immediately actionable for a maintainer.

---

### Title

`chromium.desktop` ships with unexpanded build placeholders, breaks GIO URL handling

### Description

After a recent update on Omarchy (Arch-based, Hyprland), Chromium is installed with an **invalid desktop file** at:

```
/usr/share/applications/chromium.desktop
```

The file contains **unexpanded packaging placeholders**, which makes it fail validation and causes GIO/GTK applications to reject Chromium as a URL handler. As a result, applications fall back to LibreOffice (or other handlers) when opening web links, even though XDG defaults are set correctly.

This is **not user configuration**; it is a packaging error.

---

### Evidence

Running:

```bash
desktop-file-validate /usr/share/applications/chromium.desktop
```

Produces:

```
/usr/share/applications/chromium.desktop: error: file contains line "@@EXTRA_DESKTOP_ENTRIES@@", which is not a comment, a group or an entry
/usr/share/applications/chromium.desktop: error: (will be fatal in the future): value "...;@@URI_SCHEME@@" for key "MimeType" contains invalid MIME type "@@URI_SCHEME@@"
```

These placeholders should not be present in an installed `.desktop` file.

---

### Impact

* `gio mime x-scheme-handler/http chromium.desktop` fails with:

  ```
  gio: Failed to load info for handler “chromium.desktop”
  ```
* GTK applications (including LibreOffice) ignore Chromium and fall back to other handlers
* `xdg-mime` appears correct, but GIO rejects the desktop entry
* Users experience web links opening in LibreOffice instead of their browser

This primarily affects **minimal/Wayland setups** (Hyprland, no GNOME/KDE), where GIO and XDG are not auto-synchronized.

---

### Expected Behavior

`/usr/share/applications/chromium.desktop` should:

* Contain **no unexpanded placeholders**
* Pass `desktop-file-validate` cleanly
* Be usable by GIO as a default handler for:

  * `x-scheme-handler/http`
  * `x-scheme-handler/https`
  * `text/html`

---

### Workaround (user-side)

Users can work around this by copying and fixing the desktop file manually:

```bash
cp /usr/share/applications/chromium.desktop ~/.local/share/applications/
# remove @@EXTRA_DESKTOP_ENTRIES@@ and @@URI_SCHEME@@
desktop-file-validate ~/.local/share/applications/chromium.desktop
```

…but this should not be necessary.

---

### Requested Fix

Fix the Chromium package so that:

* All build-time placeholders are expanded
* The installed `chromium.desktop` validates cleanly
* GIO can load it without errors

---

### Environment

* Omarchy (Arch-based)
* Wayland / Hyprland
* Chromium from distribution repositories
* No custom desktop-file modifications