LeonneLeonneSystems
Services & Engagement

Fixed scope. Written spec. Production delivery.

You're not buying "development hours." You're buying a controlled build process that prevents the usual failures: unclear scope, brittle automations, undocumented systems, and vendor lock-in.

Fixed-price sprintsWritten specClean handoff

Commerce Sprint

~$15k/ 4–6 weeks

Shopify or WooCommerce builds engineered for conversion, fulfillment reality, and clean ownership.

Best for

Ops or eCommerce leaders responsible for checkout, fulfillment, subscription revenue, and reporting.

Not for

Teams looking for "a pretty theme" without operational rigor.

Deliverables
  • Storefront build (Shopify or WooCommerce) with production-ready theme structure
  • Checkout and conversion improvements (where platform allows)
  • Subscription setup (Recharge or equivalent) when applicable
  • Fulfillment and shipping configuration (ShipStation, carriers, rules)
  • Lifecycle and retention wiring (Klaviyo flows + events)
  • Analytics + event tracking plan (so reporting doesn't lie)
  • QA, launch, and handoff package (docs + access)
Constraints
  • Fixed scope defined in the spec (features and pages are enumerated)
  • Standard integrations included; custom apps are separate scope
  • Content and product data supplied by client (we can structure it, not invent it)
Designed for the failure modes you've already seen: checkout regressions, fulfillment chaos, broken subscriptions, and analytics you can't trust.
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Most Popular

Web App Sprint

~$25k/ 6–8 weeks

Custom operational web applications for assets, contracts, approvals, portals, and internal operations.

Best for

Heads of Ops/RevOps shipping revenue-critical workflows that cannot live in spreadsheets or brittle no-code.

Not for

Products requiring ongoing feature churn without a roadmap.

Deliverables
  • Next.js + TypeScript application built for production use
  • Database design and data integrity rules (Neon/Postgres or Supabase)
  • Auth + permissions model (roles, approvals, auditability)
  • Admin tooling and operational views (not just a user-facing UI)
  • Integration layer (APIs, webhooks, scheduled jobs)
  • Observability baseline (error handling, logs, basic monitoring)
  • Documentation + runbook + deployment pipeline (Vercel)
Constraints
  • Scope defined by spec + acceptance tests
  • Standard auth patterns unless scoped otherwise
  • 30-day post-launch stabilization window (bugs, not features)
Built to avoid rebuild fatigue: clean architecture, clear ownership, documented workflows, and systems that can survive new staff and new vendors.
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Integration Sprint

~$8k/ 2–3 weeks

Automations and integrations that don't fail silently or corrupt your data.

Best for

Ops teams stuck doing manual reconciliation across tools (CRM, eCom, fulfillment, finance).

Not for

Teams without stable processes or ownership of the source of truth.

Deliverables
  • Workflow map and source-of-truth definitions
  • API and webhook integrations (Make, custom Node handlers when needed)
  • Data validation rules and duplicate prevention
  • Error handling and alerting (so failures are visible)
  • Documentation + runbook for future maintainers
Constraints
  • Up to 5 integrations per sprint
  • Standard APIs; no scraping unless explicitly scoped
  • Existing tool accounts and admin access required
Most automation fails at the edges: permissions, error states, retries, and data conflicts. That's what we design for.
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Failure-first coverage

Built to prevent the failures you've already paid for

Scope failure

Written spec, acceptance criteria, milestone demos

Lock-in failure

Repo access, admin access, documentation, handoff

Brittle systems

Validation, monitoring, runbooks, sane architecture

Clear Boundaries

What we don't do

Branding-only projects (unless scoped with a design partner)
Open-ended dev retainers and "bucket of hours"
Undefined discovery with no decision-maker present
Growth marketing, paid ads, SEO programs
Content production as the primary deliverable
Mobile apps (native)
Unlimited revisions or ongoing redesign cycles
Custom Projects

If it doesn't fit a package, we still scope it

Some projects are rebuilds, migrations, or mixed systems: storefront plus backend workflows, legacy refactors, or phased platform rollouts.

Discuss your project

If you want unlimited revisions or indefinite scope, this is not a fit.