Piper’s Home Assistant app removes a 16 MiB upload limit that rejected many custom voice models. A 60.6 MB model that failed before completed successfully in the contributor’s test.

Custom uploads get their own storage directory, separate from voices downloaded from the catalog. Backups keep uploaded voices and fine-tunes while excluding replaceable catalog downloads. A custom voice also takes precedence over a catalog voice with the same name.

WhoCares1337 contributes the upload fix in their first contribution to the app’s repository; Michael Hansen handles the storage separation.