create a .env file - cp .env.sample .env and fill in the variables
add audio to the audio-en or audio-nl folders
update the code in index.ts
const language = "nl";
change to either nl or en to read from the respective folder '
run the script by doing bun run index.ts (you need to install bun first)
the output is saved in the outputs folder
then you open the index.html file in your browser and upload the json using the "Upload" button