Anticipate technical debt and follow what Google recommends. In few words, use Kotlin and Compose.
However you should really have a look on Google guidelines. In more worlds:
- by default Kotlin and Compose
- if some logic to share between other projects in other environments: Kotlin Multi Platform (KMP)
- if shared UI: Flutter (but Google reduced Flutter teams and KMP is being better and better, so we can suppose Flutter will join the Google Graveyard
Did you have a look on ethical licenses? For example, Coraline Ada Hemke who created the Contributor Covenant (famous code of conduct) started few years ago the Organisation for Ethical Source promoting “ethical” licenses defined by seven principles.
So in fact this third family of licenses is not open source nor free (as defined by OSI and FSF), nevertheless I feel some needs or willings in your side to go, let’s say, “one step further”.
In ethical licenses you can find for example 999 ICU, ACAB, Anti-Capitalist, Peer Production, Hippocratic or some BSD 3-Clause variants about nuclear topics.
You can also have a look on that slidedeck (in French, sorry).