Software built for a specific job.

Agent evaluation, household finance, server backups and business documents. Each case study covers the problem, the implementation and the controls around the work.

01

Agents Skill Eval.

Software · Web app · 2026
Evaluation runchangelog-formatter01QueuedComplete02AssignedComplete03StartedComplete04DeterministicComplete05AI reviewComplete06FinalizingComplete07CompleteCompleteOverall result96ExcellentSpec compliance100Security96Token budget92Effectiveness95

A production evaluator that scores agent skill packages on spec compliance, security, token cost and effectiveness, with a machine-readable report built for CI.

Role
Design, frontend, evaluation engine
Stack
Deterministic checks, optional AI review
Read the case study
02

WealthTrack.

Software · Self-hosted · 2025
Net worth · household€1.571.282+24.655 this periodYTD6M1Y2Y5YMaxSep 2025TodayProjection · Sep 2027AllocationIndex funds38%Real estate27%Cash15%Retirement12%Crypto8%

A self-hosted household net-worth tracker: one container, plain-text data, crash-safe writes and charts that make a decade of trend readable at a glance.

Role
Full-stack design & build
Stack
Vue · TypeScript · Hono · Docker
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03

Unraid Rsync.

Open source · Infrastructure · 2026
Unraid RsyncWorkflow schematicOne schedule per job.Independent jobsTransportDestination01Files02App data03Photo libraryrsyncSSH · rsync daemonor local pathsBackup storage01Dry-runInspect the planned changes02RunTransfer on its own schedule03HistoryReview the log for each runExample jobs · shared connections · per-run logs

An open-source Unraid plugin that turns backup scripts into scheduled jobs, with dry runs, execution history and notifications inside the server’s own interface.

Role
Plugin design & implementation
Stack
PHP · Shell · rsync · cron
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04

Business document tools.

Business operations · Web tools · 2026
Business document toolsFrom browser to document01EnterEditable fieldsDocument detailsCustomerLine itemsPayment term02CheckBefore exportRequired fieldsDates & amountsCalculated totalsInputs stay in your browser03ExportA4 documentsOfferInvoiceReceiptPDF download or browser printOffers in Croatian, English and GermanNo document database

Browser-based offer, invoice and receipt templates with multilingual output, calculated totals and input checks before PDF export.

Role
Workflow, interface & implementation
Stack
HTML · CSS · JavaScript · PDF export
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