Fix compilation.

flake.lock

@@ -86,6 +86,22 @@
         "type": "github"
       }
     },
+    "nix-flatpak": {
+      "locked": {
+        "lastModified": 1739444422,
+        "narHash": "sha256-iAVVHi7X3kWORftY+LVbRiStRnQEob2TULWyjMS6dWg=",
+        "owner": "gmodena",
+        "repo": "nix-flatpak",
+        "rev": "5e54c3ca05a7c7d968ae1ddeabe01d2a9bc1e177",
+        "type": "github"
+      },
+      "original": {
+        "owner": "gmodena",
+        "ref": "latest",
+        "repo": "nix-flatpak",
+        "type": "github"
+      }
+    },
     "nixos-anywhere": {
       "inputs": {
         "disko": "disko",
@@ -211,6 +227,7 @@
     "root": {
       "inputs": {
         "disko-stable-nixos": "disko-stable-nixos",
+        "nix-flatpak": "nix-flatpak",
         "nixpkgs": "nixpkgs",
         "nixpkgs-stable-nixos": "nixpkgs-stable-nixos",
         "nixverse": "nixverse"

flake.nix

@@ -20,6 +20,7 @@
       self,
       nixpkgs,
       nixverse,
+      nix-flatpak,
       ...
     }:
     nixverse.load self {