EDIT: Thanks, guys! I ended up downloading Heliboard from f-droid :)
@freijon the question was specifically about open-source. Is this your first day here?
@GravitySpoiled Except people who violate the first rule of this community?
@freijon feel free to learn what “open source” means. Look, considering the number and frequency of posts in this community talking about this issue, you don’t get the benefit of the doubt anymore. People arguing that futo is open source are just spammers. Look around.
No need to be unfriendly. I modified my original comment to make sure everyone understands what they get when they install this keyboard.