diff --git a/internal/metadata/data.go b/internal/metadata/data.go
index f690ad0..55796b3 100644
--- a/internal/metadata/data.go
+++ b/internal/metadata/data.go
@@ -1,9 +1,17 @@
 package metadata
 
+// This file containts the Fyne metadata
+// @see https://github.com/fyne-io/fyne/blob/v2.5.3/internal/metadata/data.go
+
 // FyneApp describes the top level metadata for building a fyne application
 type FyneApp struct {
-	Website string `toml:",omitempty"`
-	Details AppDetails
+	Website     string `toml:",omitempty"`
+	Details     AppDetails
+	Development map[string]string `toml:",omitempty"`
+	Release     map[string]string `toml:",omitempty"`
+	Source      *AppSource        `toml:",omitempty"`
+	LinuxAndBSD *LinuxAndBSD      `toml:",omitempty"`
+	Languages   []string          `toml:",omitempty"`
 }
 
 // AppDetails describes the build information, this group may be OS or arch specific
@@ -13,3 +21,16 @@ type AppDetails struct {
 	Version  string `toml:",omitempty"`
 	Build    int    `toml:",omitempty"`
 }
+
+type AppSource struct {
+	Repo, Dir string `toml:",omitempty"`
+}
+
+// LinuxAndBSD describes specific metadata for desktop files on Linux and BSD.
+type LinuxAndBSD struct {
+	GenericName string   `toml:",omitempty"`
+	Categories  []string `toml:",omitempty"`
+	Comment     string   `toml:",omitempty"`
+	Keywords    []string `toml:",omitempty"`
+	ExecParams  string   `toml:",omitempty"`
+}