Disaster preparedness and response, owned by the community it protects.

What Siaga is

Siaga means ready in Bahasa Indonesia: prepared and alert before a hazard arrives. It is sovereign, offline-first software a community owns and runs to prepare for a disaster and to respond when one strikes.

In calm times a community builds and holds its own risk register, its preparedness plan, and a map of its households and shelters. When a cyclone, flood or earthquake hits, a response reads and updates that same record: rapid needs assessment, shelter activation and check-in, and the tracking of supplies and deployable shelter units. The community owns its data the whole way through.

What it does

Field teams capture everything on an ordinary Android phone, working fully offline for as long as they need to. A device syncs to a community-owned box at the hall or command post when it comes back into range, and that box shares only what the community permits with a responding organisation or government office during an active response. Help reaches the right door without a register of who is vulnerable, and where they live, leaving the community's hands by default.

Age, sex and disability are part of the record from the start, using the Washington Group short set so the data is comparable and defensible, and collected only where a household consents. Two volunteers assessing the same household during a response both keep their observations, reconciled by a coordinator rather than overwritten by the software, so no field report is silently lost.

Who it's for

The village, desa, barangay, ward and island-community committees that hold a community's preparedness data; the volunteers who walk door to door to build the map; the coordinators who run an evacuation centre; and the disaster-management offices that support them. Built for the Asia-Pacific, where phones are Android, power comes from generators and solar, and connectivity disappears exactly when a response needs it most.

How it's held

Siaga holds the most sensitive data in the family: who is vulnerable, and exactly where they live. That data stays at the most local level able to hold it, minimised by design, consented per household, and erasable on request. It follows the same sovereignty-first principles as Kora, Suara, Selo, Aprende and Bukti: your data, your infrastructure, your control. No central data pooling, no telemetry, ever.

Where it's up to

Siaga is in development. It is being designed before it is built, so that the communities and responders who would use it help shape it from the start. A community that did not help design a tool has no reason to keep it running.

The decisions that matter most, what a coordinator can see about identified people during a response, who holds the household map and how households are registered, and which local hazards and vulnerabilities the standard frameworks miss, are ones we want to make with a partner rather than ahead of one. We are committed to launching Siaga, and we want to build it in the open.

Get involved

We are looking for a co-design partner: a community, a responding organisation, or a network in disaster resilience across the Asia-Pacific, willing to shape and test Siaga in real conditions. If that could be you, tell us what you are working on and we will be in touch. Reach us at hello@openimpact.studio.