fix open-in-mpv extension

hosts/common/programs/default.nix

@@ -57,6 +57,7 @@
     ./ntfy-sh.nix
     ./obsidian.nix
     ./offlineimap.nix
+    ./open-in-mpv.nix
     ./playerctl.nix
     ./rhythmbox.nix
     ./ripgrep.nix

hosts/common/programs/open-in-mpv.nix

@@ -0,0 +1,18 @@
+{ ... }:
+{
+  sane.programs.open-in-mpv = {
+    # taken from <https://github.com/Baldomo/open-in-mpv>
+    fs.".config/open-in-mpv/config.yml".symlink.text = ''
+      players:
+        mpv:
+          name: mpv
+          executable: mpv
+          fullscreen: "--fs"
+          pip: "--ontop --no-border --autofit=384x216 --geometry=98\\%:98\\%"
+          enqueue: ""
+          new_window: ""
+          needs_ipc: true
+          flag_overrides: {}
+    '';
+  };
+}