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rechenzentrum · managed hosting

open source, run properly.

Not SaaS wrappers, not reseller plans. Each tool is an open-source project we operate, contribute to, and host on German infrastructure. The ops repos are public — come inspect them.

products & pricing inspect the ops repos
what managed hosting means here

the open-source app, run properly — on infrastructure that is yours alone.

Each product below is an open-source tool we deploy, operate and keep updated for you. No shared databases, no multi-tenant trade-offs: your instance runs on dedicated German infrastructure, with backups, monitoring and a real operator behind it.

01
dedicated, not shared

Single-tenant infrastructure per instance. Your data never shares a database with anyone.

02
we run the ops

Deployment, updates, backups, monitoring — handled. You get the app, not a maintenance job.

03
open source, inspectable

The tools and our ops setup are public. Run them yourself, or let us run them right.

four products, same careful operations
GoBD
SOON
papierfach
/papierfach

Paperless-ngx, hosted properly.

39€ / month
GoBD-compliant — 10-year retention, append-only backups, audit log
Dedicated single-tenant server — no shared infrastructure
50 GB document storage, German servers (Hetzner)
Dual-region nightly backups, monthly restore drills
AI add-on (PaperCortex) SOON
DATEV export, structured invoice + receipt data
+10€ / month
Additional storage
transparent, no surprises
1€ / 10 GB
On cancellation notice, a full export is generated immediately. 30 days to download — then server, backups, everything is deleted.
join the waitlist no credit card required
setzkasten
/setzkasten

Ghost CMS + Umami, deployed properly.

19€ / month
Umami analytics included — cookieless, GDPR-native, self-hosted. That is the differentiator, not a basic traffic counter.
Ghost CMS, custom domain, SSL
Umami analytics — privacy-first, self-hosted
Dual-region backups, 12-month retention
Monitoring, updates, German operator
Same as papierfach — export on notice, 30 days to download, then everything deleted.
start 14-day trial no credit card required
SOON
aktenschrank
/aktenschrank

Docmost, hosted properly.

24€ / month
Team wiki and docs — spaces, pages, real-time editing
Dedicated single-tenant server — no shared infrastructure
German servers (Hetzner), SSL
Dual-region backups, monitoring, German operator
Same as papierfach — export on notice, 30 days to download, then everything deleted.
join the waitlist no credit card required
SOON
schreibtisch
/schreibtisch

Kirby CMS, hosted properly.

14€ / month
Kirby — flat-file CMS, no database to babysit
Dedicated single-tenant hosting, custom domain, SSL
German servers (Hetzner), Git-based deploys
Backups, monitoring, German operator
Same as papierfach — export on notice, 30 days to download, then everything deleted.
join the waitlist no credit card required
no setup fee · no annual contract · cancel anytime
stack transparency
~/kabelschrank · stack.yaml
compute:
Hetzner · Docker Compose
ingress:
Cloudflare Tunnel
network:
Tailscale
backups:
Restic · dual-region
regions:
Falkenstein + Helsinki
observability:
wachturm → /status
the boring parts, named. for the developers reading this. see live status
the tooling behind it: /kabelschrank /wachturm