Just give everbody the full range and use dsp compression on decices with well defined sensible defaults.
Similar to the thing we did witb vinyl back in the day where we wanted to fit more music onto the thing and applyed the standardized RIA filter when cutting the template — every phono preamp reverses this effect.
The tbing is people need to have specs they can mix and master for. Making something up makes mixinf unpredictable and that is bad.
You attach some metadata to the audio file that says certain parts should be level boosted in a noisy environment and there you go.