Unfortunately, seems like it hasn't been maintained for quite a while (https://github.com/ro31337/libretaxi/graphs/contributors https://github.com/ro31337/libre

Unfortunately, seems like it hasn't been maintained for quite a while (https://github.com/ro31337/libretaxi/graphs/contributors https://github.com/ro31337/libretaxi/graphs/contributors), doesn't support credit/debit cards (cash only) and also doesn't seem to offer any safety features (any driver can sign up at any time without any sort of verification)