@matrix translations could be left up to Deepl API
> DeepL API pricing includes a free plan that allows up to 500,000 characters per month, suitable for small projects. For more extensive use, the Pro plan starts at a base fee of $5.49 per month plus $25.00 for every additional 1,000,000 characters used.
building the full pipeline for audio could be a bit difficult, but maybe some open solutions already exist