Jatabag
It's lame, but a todo list app: jatabag.com It's tailored toward implementing a web version of the original cli app and whitepaper "grit" https://github.com/climech/grit So basically it creates a DAG and each task node can receive some annotated data (traits) about whether the task is actionable or not. I've been using it daily for a year or so. Slight bummer that I feel I released it 5 years overdue, though, and it's doomed to drown in noise.