There may be more examples. But the idea is that the emulator uses an online translation service to translate texts from games in foreign langauges (e.g. Japanese) so you can still play them. The translated text could be overlayed. Similar to how Google Translate works with a live translation overlay on your smartphone camera image.
See this for Textractor: https://github.com/Artikash/Textractor
There may be more examples. But the idea is that the emulator uses an online translation service to translate texts from games in foreign langauges (e.g. Japanese) so you can still play them. The translated text could be overlayed. Similar to how Google Translate works with a live translation overlay on your smartphone camera image.