Most mapping systems fail before they say they’ve failed.
Especially on slow, unstable networks that look connected — but aren’t.
Especially on slow, unstable networks that look connected — but aren’t.
BlocNav is an offline-first mapping and coordination system designed for field teams operating under degraded connectivity.
In real field conditions, connectivity is rarely binary. You’re not fully online. You’re not fully offline.
You’re on a weak, unreliable network that signals “connected” while quietly blocking access to local data.
Maps stall. Tiles don’t render. Spinners never resolve. The system doesn’t fail loudly — it hesitates.
For field teams, that hesitation erodes trust and delays decisions.
When a system knows it is offline, it can fall back to local data.
When a system believes it is online — but isn’t — it often blocks that same data waiting on the network.
This creates a dangerous paradox: local data exists, but becomes unreachable at the moment it is needed most.
This failure mode is common, under-documented, and operationally risky.
BlocNav exists because this class of failure is unacceptable.
It is built around non-negotiable constraints learned from real field use:
Offline is canonical. Local persistence comes first. Systems must degrade clearly, not ambiguously. Silence is better than lying.
These are not feature goals. They are enforced design decisions.
BlocNav’s public engineering artifacts live outside this site.
They document real failure modes, design principles, and operational lessons — without exposing implementation or roadmap.
blocnav-reliability (GitHub)
FAILURE_MODES.md
DESIGN_PRINCIPLES.md
BlocNav is currently in limited pilot evaluation with teams operating
in constrained, non-ideal environments.
If you are evaluating systems under real field conditions,
you may reach out.