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OpsbyFabian.
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Tell me what you need

I build the tools your business needs, connect the ones you already use, and keep everything working.

Apps, tools and websites. Connections between your tools. Private infrastructure and optional maintenance, also as a standalone service.

Tell me what you needSee examples
FollowUpOS

Today

What you owe a reply to, right now.

Going cold · reply today

Sample lead AReplied 18 days ago

The conversation was left open. The next move is yours.

Sample lead BProposal sent · 21 days no touch

A budget discussion is still open.

Owe them a follow-up

Sample lead CAsked for proposal Mon
Sample lead DDiscovery follow-up due

This week

Sample lead EApr 30 · sample week
Sample lead FMay 1 · sample week
DealSharpUnderwriting file

123 Oak St · Duplex

Deal score
87 A
True cash flow
$11,240 /yr
DSCR
1.42
Cap Rate
6.8%
LTV
72%
FarmaPanelOperations dashboard

Sample pharmacy · June 2026

Read only
Value at risk
8.176 €
Stock without sales
40.521 €
Average margin
27,8 %
Alerts
30

Your business shouldn’t have to work around its software.

A tool for your daily work, a connection between two programs, or somewhere to run your existing app. Start with the part your business needs.

  • Software that almost fits.
  • Systems that don’t speak.
  • Work that keeps coming back.

Built around real work.

Lead follow-up, property calculations, stock and supplier-document review. Each example shows its actual scope and stage.

DealSharp: property underwriting file

DealSharp

Owned product · in development

View project

Property deal calculators, scenario comparisons and portfolio views in one application.

FarmaPanel: stock, expiries and margins

FarmaPanel

Owned product · private validation

Stock, expiry and margin views built from authorized pharmacy exports.

View project
Also in developmentE-commerce purchase review
Explore all projects

Built end to end

One system. Built to keep working.

Build a tool, connect existing programs, or prepare and maintain the place they run. You can hire any one of these services.

Built around the workflow.

A useful interface starts with the people, the data and the job it needs to do.

The pictured FollowUpOS example shows how a focused workflow becomes software.

How we work

  1. 01

    Talk

    Tell me what you need and which tools you use. We agree the work, timing and price before starting.

  2. 02

    Prepare

    Build, connect or set up what we agreed. Check it with you before putting it into use.

  3. 03

    Hand over

    You receive the access and instructions. If you want ongoing maintenance, we agree what it covers.

Your apps need somewhere to run.

I can prepare private infrastructure for the programs you already have: deployment, access, monitoring, backups and recovery. Optional maintenance. No new software required.

Infrastructure and maintenance
See deployment and recovery evidence

Recovery validation

September 2026 · Internal platform

  • Hermes workspace restored
  • n8n database restored in isolation
  • Restored n8n authentication verified

Historical September tests, separate from the 8 October Scope A acceptance, which excludes Hermes and Scope B/Full. Not live telemetry.

Work directly with the person building it.

I’m Fabian, the founder and builder behind OpsByFabian. I connect the software, the business process and the infrastructure, and stay involved through production.

Meet Fabian
Fabian Janiszewski
Fabian Janiszewski · Founder & builder

Something still missing?

Tell me what isn’t working. We’ll start with the problem.

Tell me what you need