As a sort of spiritual successor to git-appraise, I've been working on git-bug[1] which support issues and will at some point support kanban and code review. There is a few notables improvements:
- CRDT-like reusable data structure [2][3] for true p2p workflow and easily create new entities (code review ...)
- bidirectional bridges to github, gitlab ... to ease the transition or just use git-bug as a complement of those platform
- CLI, terminal UI and web UI, for different taste and integrate into your tooling/workflow