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Mainframe

B2B — Data Protection & Linux

Self-Hosting Setup (Nextcloud, Vaultwarden, etc.)

Migrate off Google Workspace or Microsoft 365 to a self-hosted stack — Nextcloud, Vaultwarden, and more — with encrypted backups and a GDPR-compliant architecture.

A self-hosted workplace stack on your own infrastructure — as an alternative to Google Workspace or Microsoft 365. You keep control over data, backups, and availability without giving up the comfort of modern tooling.

What’s included

  • Discovery conversation on the current state: which services are actually used, which data lives where, what compliance requirements apply
  • Architecture and hardware recommendation: Hetzner Cloud (Falkenstein, Nuremberg) or your own hardware on-premise
  • Full Docker Compose stack with Nextcloud (files, calendar, contacts), Vaultwarden (passwords), and additional services as needed — e.g. an OnlyOffice server for documents
  • Email recommendation: typically Mailbox.org or a self-run Mailcow server, depending on complexity and domain reputation
  • Backup strategy: local snapshots plus encrypted off-site backups (restic, Borg) to a second Hetzner region or an on-premise NAS
  • TLS, reverse proxy (Caddy or Traefik), authentication (OIDC or LDAP as required)
  • GDPR documentation: processing record entry, data processing agreement with Hetzner, technical and organisational measures
  • Migration of existing data and onboarding for one internal team member — scope agreed individually

Who it’s for

SMBs with 5–50 employees who no longer want their workplace data sitting in the US — for GDPR reasons, Schrems-II concerns, or simply to avoid being held hostage at vendor-renewal time.

What’s not included

No ongoing operation — after handoff, it’s yours. An optional monthly retainer is available separately. We only recommend Mailcow self-hosting if you’re prepared to carry the reputation and spam-handling work; otherwise Mailbox.org.