Biktor and Lynxis will be working on OpenIMSd, which aims to bring VoLTE (4G voice calls) to Qualcomm based phones (like the PinePhone)
This is fantastic news, and I wish them all the best. Reliable VoLTE/WoWiFi calls was my main (but obviously major) issue with the PinePhone.
Other than with language models, this has already happened: Take a look at apps such as Merlin Bird ID (identifies birds fairly well by sound and somewhat okay visually), WhoBird (identifies birds by sound, ) Seek (visually identifies plants, fungi, insects, and animals). All of them work offline. IMO these are much better uses of ML than spammer-friendly text generation.