I like your style! What's involved in such a thing? Since I bailed from Windows Phone 6.5 (after Microsoft broke every promise and turned my expensive and capable hardware into a paper weight by shutting down the store and not upgrading us to WP7 like they promised, but I digress) I've always bought Nexus, OnePlus, or Pixel devices where bootloader is easily unlockable. I did try the Moto X developer edition back in the day which required me to use their website to get an unlock key (still sad that Moto retreated on the openness/unlockability. It could have been a great long relationship Moto).
So, how complicated is a tool to unlock the bootloader?
Edit: I just saw your other comment that "you will release tools to unlock the bootloader". What is the timeline for that? Can you do it today?