Open books for shared buildings.
The money a building holds in common: kept safe by two signatures, kept open to every owner.
Three promises
Two signatures. Open books. Clean handovers.
No one person can move the money.
Every expense needs two signatures. Nobody signs their own spending; a backup approver steps in. Enforced by the system, not just the screen.
Every owner sees where it went.
Balance, spending by category and the trend, with the receipt behind every entry. Posted entries can never be edited; a mistake is fixed with a visible correction.
The books outlive the committee.
Roles have start and end dates. A new treasurer logs in to the full history, the open items and a handover summary. Export everything, any time.
Why “Commonkeep”
The keep was where the things that mattered were kept safe.
In an old castle, the keep was the strongest part. Every shared building has something like it: the money everyone pays in, held by a volunteer, trusted on faith. Commonkeep gives that money a proper home: kept safe by two signatures, kept open to every owner, and kept in order when the committee changes.