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Based in Kyiv, Ukraine (UTC+2/+3). Live overlap 9 AM – 1 PM ET every working day, plus the full UK and EU working day.
Work & reference builds

Systems built for work that happens on site, on the road and on the shop floor

Quoting engines, claims workspaces and dispatch architecture — with the formulas, schemas and trade-offs shown. Every project is labeled for what it is: a client project, prior work by our team, or a reference build you can try yourself.

Try the roofing takeoff engineBook an Operations Audit
How to read this page:Honest categorization of systems and intellectual property
Client project

Built for an active client and published with explicit written permission.

Prior work by our founders

Systems the founders designed before SolviLab; client and employer names withheld.

Reference build

Our working system engineered for an industry problem. No client metrics, just the architecture.

Commercial Roofing Takeoff & Quote Engine
0:30 Walkthrough
Watch demo video (0:30)
Muted by default · Click to expand
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* Video displays actual production quoting engine interface
Construction & Field ServicesClient project · Commercial roofing contractor, US
Scope tierFocused Micro-System · ~3 weeks · ~$6,500

Commercial Roofing Takeoff & Quote Engine

Roof footprint, pitch and system type go in; surface area, squares with waste, material cost, labor and a bid total come out — from one formula you can inspect. Built to replace the 40-tab estimating spreadsheet.

3 core inputsFootprint, pitch factor & roof assembly
Formula shownPitch multipliers, waste & labor on screen
Live engineInteractive working demo on page
Vue 3PostgreSQLPDF GenerationFormula Engine
Try Live Takeoff Engine
TernFlow: One Queue for Refunds & Disputes Across 12 Stores
0:26 Walkthrough
Watch demo video (0:26)
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* Video displays dispute queue & webhook sync
Claims & DisputesReference build — tested on development stores with sample data.
Scope tierCustom Operational CRM · $15,000–$35,000

TernFlow: One Queue for Refunds & Disputes Across 12 Stores

Refunds and payment disputes from 12 Shopify stores land in one queue with deadlines, owners and currency breakdowns. Every refund records who approved it. Fits freight claims, warranty returns and service complaints.

12 store sourcesOne consolidated queue, single login
Deadline trackingDisputes surface before payment window expires
Audit trailEvery refund tied to an operator role & rule
Shopify WebhooksNuxt 3Laravel APIPostgreSQLRedis
See How It's Built
Architecture BlueprintsReference build · Based on patterns from prior work
Scope tierOperations Audit Blueprint · From $1,000

Architecture Samples: Field Dispatch, Document Intake & Material Ledger

Reference schemas, shown in full, based on patterns from prior work: a technician dispatch board that schedules by skill, location and job status, an automated document intake pipeline, and an append-only material ledger.

Data modelsReference schemas, shown in full
Failure handlingQueues, retries & review steps shown
Full ownershipDelivered to your Git repo & server cloud
PostgreSQL SchemasSystem BlueprintsDockerCloud / VPS
Explore Blueprints
Sample deliverable

See what an audit hands you

Before any custom build, we deliver the same four tangible assets for every client. Here is what you receive during the 5–7 working day engagement:

1 · Bottleneck mappingWorkflow bottleneck analysis and operational constraints.
2 · Clickable prototypeClickable core-flow prototype (5–6 screens) before writing code.
3 · Written build scopeDetailed screen logic, user roles, and integration requirements.
4 · Fixed-price quoteLocked build price and milestone schedule. Yours to keep, whoever builds it.
Book an Operations Audit (From $1,000) 5–7 working days · 100% credited toward a Custom CRM build if signed within 60 days
Next step

Have a process that looks like one of these?

Book a 30-minute call. Walk us through one workflow — we'll tell you which of these patterns fits, what it would roughly cost, and whether you need a custom build at all.

Book a Free 30-Min Architecture CallSend a Process for Review

Prefer email? Reach us at info@solvilab.com

Fixed price agreed before build
100% code ownership
Live overlap 9 AM – 1 PM ET