I've built a library that manages hierarchical data in a flat, ordered json. It will perform basic operations. Add, Delete, Demote, Promote, Move Up/Down all data in data out for your use. It computes outline numbering, 1, 1.1, 2, 2.1 etc. As well as can create an ascii tree for console use. You can check out the github page I'd love some early feedback. I built it because I'm building a requirements and project tracking CLI/TUI tool that needs a flat ordered structure, and I couldn't find anything that met that need. Once I had it working I thought it might be useful for other projects!