Privacy Policy — Self-Hosted Edition

Last updated: May 1, 2026

This is a self-hosted application. When you install OpenConstructionERP on your own server (via pip install, Docker, or VPS), all data you create — accounts, projects, BOQs, CAD files, costs — stays on your machine. DataDrivenConstruction does not see, collect, or process any of it.

1. Who We Are

OpenConstructionERP is open-source software (AGPL-3.0) developed by DataDrivenConstruction, founded by Artem Boiko.
Contact: info@datadrivenconstruction.io
Website: datadrivenconstruction.io

2. What This Policy Covers

This policy describes the privacy properties of the self-hosted application — the software you install and run on your own infrastructure. It does not cover the public demo at openconstructionerp.com, which has a separate policy because that one is operated by us.

3. Data You Create In Your Local Installation

When you register an account, create projects, import CAD files, or build BOQs in your self-hosted installation:

Your data is written to your database (PostgreSQL or SQLite, your choice).
Files you upload (PDFs, drawings, models) live on your filesystem or your S3 bucket.
Authentication tokens (JWT) are issued by your server and never leave it.
OpenConstructionERP does not phone home, telemetry, or send analytics. Inspect the source — there are no outbound network calls except those listed in §5.

The role you assigned to this app under GDPR is "Verantwortlicher" (Controller). DataDrivenConstruction is neither a Controller nor a Processor of your project data.

4. Personal Data Collected By The App

The application stores user-account fields (email, name, optionally company / role) in your local database — purely so users can log in and see their name in the UI. These fields are your data, governed by your privacy policy if you operate the app for others.

5. Outbound Network Calls

The application makes outbound HTTP calls only in these well-defined cases. All are optional or one-off:

Case	Destination	Triggered when
AI features (estimation, classification)	OpenAI / Anthropic / Google APIs	You configure your own API key and call an AI feature. Prompts go to your chosen provider.
CAD converter binaries	github.com/datadrivenconstruction releases	First-time install of a CAD format, downloading the converter executable.
CWICR cost-database snapshots	github.com/datadrivenconstruction releases	You click "Install region" in `/costs/import`.
Update check (optional)	pypi.org	Only when you run `pip install --upgrade openconstructionerp`.

None of these send your project data anywhere. They only fetch software / data to your server.

6. No Tracking, No Analytics

The app does not embed Google Analytics, Mixpanel, Sentry, FullStory, or any other analytics or session-replay tools. No tracking pixels. No advertising cookies. No cookie consent banner is needed because we use only essential session cookies (JWT token, language preference).

7. Your Rights If You Run This App For Others

If you operate OpenConstructionERP as a service for end users (your team, your clients), you are the Controller under GDPR / CCPA / equivalent regimes. You should publish your own privacy policy for those users and handle data subject requests yourself. The app provides built-in tools to support this:

Account export (JSON / CSV / Excel) for data portability.
Account deletion that removes all associated personal data.
JWT short-lived tokens + bcrypt password hashing for security.
Source-available code (AGPL-3.0) for independent security audit.

8. Public Demo

If you tried OpenConstructionERP via the public demo at openconstructionerp.com, that instance is operated by us. Its separate privacy policy (linked from that site) describes what we collect for the demo. Demo data is periodically wiped and is not for production use.

9. Changes

We may update this policy. Changes ride along with new releases of OpenConstructionERP and are visible in the CHANGELOG. The "Last updated" date at the top reflects the current version.

10. Contact

Questions about the software's privacy properties:
Email: info@datadrivenconstruction.io
GitHub: OpenConstructionERP