This post about their GitHub integration makes me chuckle, written by someone who heard GitHub is used for "codes": https://quire.io/blog/p/Hello-GitHub-We-are-Quire.html
"For some of you, it is difficult enough to keep everyone up to date with the tasks at hand. It is even more so when they involve codes. Lots of codes."
"refer and trace back between tasks and codes"
Relevant here as it has single-key shortcuts for actions and is an infinitely nested task list, but unlike Flowy, works way better for teams, with GitHub integration, etc.