Local NAS
Files and backups remain controlled on site and available only as approved.
Make services reliably available
Physical, virtual and cloud servers for files, applications, websites and data, designed for small and medium environments.

Make services reliably available
The platform is selected for real load, protection and recovery targets rather than maximum complexity.
Files and backups remain controlled on site and available only as approved.
An internal application receives a maintainable runtime environment.
Public or internal services are secured, monitored and recoverable.
We clarify the goal, current situation, users and essential requirements.
You receive a rough framework for implementation, scope, timing and price.
The project is built transparently, with regular feedback whenever useful or requested.
The solution is delivered or installed, tested and explained clearly.
Support for agreed features and later extensions remain available.
Availability and redundancy match the agreed risk. Migrations receive a planned sequence and, where possible, a rollback plan.
IT-Service Castel
Primarily small and medium-sized businesses, facilities and teams. Ambitious personal passion projects are welcome too.
Yes. On-site work is available in Berlin and Brandenburg and, depending on the project, throughout Germany. Travel effort and cost are agreed in advance.
Billing depends on the task, scope, risk and required support. You receive a transparent framework before work starts; there are no blanket bargain promises.
You can enquire at any time. Guaranteed acceptance, response or restoration times apply only when explicitly agreed. Any surcharge is confirmed before paid out-of-hours work starts.
Directly by email, phone, WhatsApp or through the Castel community on Discord. The form only needs your name, email and message.
Selected service: Server systems
Briefly describe your project. I will clarify the goal, scope and most sensible next step with you.