Make Sobriety Cross Platform

[KiARC]

It would be great to be able to release Sobriety on iOS but a lot of work would need to be done on making the code work on both platforms. Luckily Kotlin can be used for both, but Android APIs wouldn't work and neither would many Google libraries I would assume. This is a very long term goal.

[KiARC]

Created a branch for this, working on step 1 which is to extract code that'll work on both platforms

[unbiaseduser]

Hey, I just created a KMM-based branch here which uses https://github.com/Kotlin/kotlinx-datetime for time data and https://github.com/Kotlin/kotlinx.serialization for The Cache(TM) (it's literally just a json file.).
Now all you have to do is check it out, maybe polish it up a bit?, and, uh, write iOS code. Because i don't have a Mac.

[KiARC]

Oh thanks! Yeah, this is probably going to take a really long time, but I feel like it's a good idea overall, thank you for helping me get started