Legacy

Rebuild without the hard reset.

Move off software you've outgrown in steps—keeping whatever still earns its keep and replacing only the parts holding you back.

We help teams escape brittle monoliths, unsupported tools, and integration spaghetti without freezing the business for a year-long rewrite.

Let's talk about modernization →
app.cybercube.software
Integration workspace · illustrative data

Why incremental

Big-bang rewrites fail quietly. Strangler paths don't.

Your team still ships product, serves customers, and closes the books while the old system creaks. A full replacement sounds clean until scope, risk, and downtime compound—and the launch slips another quarter.

Modernization done well introduces new capabilities beside legacy pieces, migrates traffic and data in controlled slices, and leaves you with software you own—not another vendor lock-in.

Sequence modules by risk and revenue impact: wrap what you must keep, rebuild what clients touch, and retire components only when metrics prove the new path holds.

Typical modernization moves

API layer over legacy

Expose stable interfaces so new apps and integrations don't require touching fragile internals every time.

Replace modules one at a time

Billing, reporting, admin, or customer-facing surfaces rebuilt while the core keeps running until cutover is safe.

Data migration with validation

Move history in batches, reconcile against source systems, and roll back if counts or balances don't line up.

Cloud-ready operations

Hosting, observability, and deployment pipelines that match how you ship today—not how the old vendor hosted in 2012.

Runbooks as you go

Document decisions, data mappings, and cutover steps while you replace modules—so ops isn't guessing after the consultants leave.

Not on this list?

Tell us what you're trying to build.

Let's talk

Built for teams under live pressure

Modernize while the business keeps running.

Legacy systems often still process real money and real customers. The goal is not a slide-deck architecture—it is safer change with evidence at every step.

We work alongside your operators and engineers: dual-write where needed, feature-flag cutovers, and rollback plans before traffic moves.

You keep ownership of the code and roadmap when the engagement ends—without trading one vendor prison for another.

What incremental modernization targets

Lower change risk

Smaller releases with validation gates beat monolithic launches that paralyze the business when something slips.

Faster time to new features

New surfaces on modern stacks while legacy cores keep doing the heavy lifting until you're ready to swap them.

Integrations that last

APIs and event flows that new SaaS and internal tools can plug into—without brittle screen-scraping.

Data you can trust mid-migration

Reconciliation reports and batch checks so finance and ops sign off before you turn off the old path.

Retire legacy on evidence

Decommission modules when usage, metrics, and runbooks say it's safe—not when a calendar milestone says so.

Not on this list?

Tell us what you're trying to build.

Let's talk

Outcomes depend on legacy complexity, data quality, and how much of the stack you replace first—not every modernization yields the same timeline or cost profile.

What that can look like

Modernization stories. Real constraints, real cutovers.

Work where we connected, rebuilt, or replaced systems under live business pressure.

Integration platform

Unified APIs and automation between CRM, ERP, and SaaS tools that used to sync by hand.

Read the case study

Clinic operations upgrade

Scheduling, records, and billing brought into one system built for how the practice actually runs.

Read the case study

Marketplace scale-up

Vendor onboarding, payouts, and catalog growth on architecture meant to handle real transaction volume.

Read the case study

Learning platform rebuild

Courses, progress, and admin rebuilt for reliability and an experience learners stick with.

Read the case study

Greenfield product work lives under MVP development and Web applications.

How we get there

Assess, isolate, migrate with evidence.

  1. 01

    Audit what you have

    Systems, data flows, failure modes, and the features the business truly cannot live without for a week.

    Illustrative audit mapping existing systems and data flows, failure points, and business-critical features.
  2. 02

    Plan the strangler path

    Sequence modules by risk and value—what to wrap, what to rebuild, and what to retire.

    Illustrative strangler-path plan sequencing which modules to wrap, rebuild, and retire by risk and value.
  3. 03

    Build beside legacy

    Dual-write or sync where needed, feature-flag cutovers, and rollback plans before traffic moves.

    Illustrative new system built beside legacy, with dual-write sync, feature-flag cutovers, and rollback plans before traffic moves.
  4. 04

    Decommission with confidence

    Retire old components only when metrics, finance, and ops sign off that the new path holds.

    Illustrative decommission checklist where metrics, finance, and ops sign off before old components are retired.

What you get

A modern stack you control.

  • Software you own

    You keep the code, roadmap, and accounts—no trading one vendor lock-in for another.

  • Lower change risk

    Incremental releases with validation gates instead of a single high-stakes cutover.

  • Integrations that last

    Stable APIs and event flows that new tools can plug into, without brittle screen-scraping.

  • Data you can trust

    Reconciliation reports and batch checks so finance and ops sign off before legacy is retired.

  • Runbooks and docs

    Decisions, data mappings, and cutover steps captured so your team can operate it after launch.

More to explore

← Previous Workflow software Next → Internal tools
See everything we build →

Outgrown the system—but can't stop the business?

Tell us what's failing, what's sacred, and your timeline. We'll outline a modernization path you can execute in phases.

Let's talk →