01 — IT
IT Consulting & Architecture
Pragmatic guidance on cloud, infrastructure, and platform decisions that balance cost, security, and operational maturity.
IT • LLM • Artificial Intelligence
Thoughtful technology, applied with intent.
vanRoojen LLC is a boutique advisory firm partnering with organizations to modernize IT, adopt large language models responsibly, and turn artificial intelligence into durable, measurable outcomes.
What we do
Focused services for organizations navigating change.
We bring senior-level engineering and strategic judgment to engagements of any size — with an emphasis on clarity, craftsmanship, and long-term value.
02 — LLM
LLM Solutions
Evaluation, integration, and production deployment of large language models — including retrieval, agents, and internal copilots.
03 — AI
AI Strategy & Enablement
From roadmap to rollout: practical AI programs grounded in your business, your data, and the realities of your teams.
Products
Software and projects we build alongside our advisory work.
A small, deliberate catalog of tools, products, and public projects shaped by the same engineering judgment that drives our consulting.
01 — AI Consulting
vanRoojen LLC
Client-Owned AI Systems
Practical AI and LLM consulting for smaller businesses that want fast workflow value without being trapped inside a vendor's AI hub.
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02 — Azure Spot recovery
SpotStarter
SpotStarter
Azure Spot VM restart automation for teams trying to keep Spot workloads recovering after eviction, with Resource Health checks and scoped opt-out tags.
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03 — Azure tag governance
TagTamer
TagTamer
No-sign-in Azure tag governance workbench for canonical tag models, inventory cleanup, dry-run plans, rollback snapshots, and Azure Policy package export.
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04 — Azure VM priority
SpotSwitcher
SpotSwitcher
Azure Cloud Shell wizard for switching VMs between Spot and Regular priority, with dry-run plans and quota-aware, cost-sorted Spot SKU recommendations.
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05 — Self-managed fleets
TvRMM
TvRMM
Endpoint monitoring and management for Windows, Linux, Proxmox, and Unraid, available as hosted SaaS or a single-tenant customer-owned deployment.
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06 — AI knowledge clean room
Trove
Trove
Clean-room institutional knowledge infrastructure for AI agents, built to turn private work context into governed team knowledge without becoming employee monitoring.
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07 — Azure storage cost
StorageCosts.cloud
StorageCosts.cloud
Azure storage performance and cost planning with current pricing data, pricing history, and scenario analysis for teams comparing storage choices.
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08 — Azure NetApp Files
ANF Signal
ANF Signal
Independent documentation-change monitoring for Azure NetApp Files, with AI-assisted classification and concise, source-linked email alerts.
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09 — Small-shop books
LedgerLeaf
LedgerLeaf
AI-assisted bookkeeping for owner-led businesses, turning receipts, emails, statements, and bank activity into source-linked records with human review.
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10 — Practical guide
Roadmap
Business Deductions Roadmap
A practical guide for hobbyists, tinkerers, artists, and side hustlers who want cleaner books and a more defensible tax process.
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11 — Linked project
ARTchive.site
ARTchive.site
A public archive platform for creative artifacts, provenance, evidence, sightings, and cultural preservation, starting with the CollageOrama archive.
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12 — Provenance
AttestLog
AttestLog
Open provenance infrastructure for digital files: local proof packages, portable manifests, append-only log entries, and later verification without uploading file bytes.
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Our approach
Senior judgment, small footprint, lasting results.
Every engagement starts with listening. We work shoulder-to-shoulder with your team, write code when that's the right answer, and produce documentation you'll actually use long after we're gone.
- Clear scope, fixed milestones, and no surprises.
- Security, privacy, and compliance considered from day one.
- Handoff-ready artifacts — not slides that collect dust.
- Independent, vendor-neutral recommendations.
Get in touch
Have a project in mind? We'd like to hear about it.
Whether you're scoping a new AI initiative, reviewing an existing stack, or just exploring what's possible — a short conversation is a good place to start.