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TypeScript

JavaScript, but
with a safety net

Static typing, better documentation, fewer bugs in production. We write in TypeScript because code quality directly impacts the quality of your product.

Free consultation · We respond within 24h

strictmode on every project
0tolerance for type errors
E2Etyping from database to UI
#2most popular language (Stack Overflow)

Why TypeScript?

TypeScript is a superset of JavaScript with a type system. It catches bugs while you write code, not in production at your customer's end. It provides better editor hints, easier refactoring, and serves as living documentation. For us, it is not optional. It is the standard.

What TypeScript gives you

  • Type safety

    Bugs caught in the editor, not by your customers. Fewer bugs, fewer hotfixes, more peaceful nights.

  • Living documentation

    Types describe what the code does. New developers instantly understand data structures and APIs.

  • Fearless refactoring

    Rename, move a file, modify an interface. TypeScript catches every broken reference.

  • Productivity

    Intelligent hints, inline errors, automatic imports. Faster coding, fewer mistakes.

How we work with TypeScript

TypeScript strict mode is our standard. Every line of code is typed, from the database to the React component.

  • Strict mode, no exceptions

    • TypeScript strict in tsconfig.json
    • Zero tolerance for any and ts-ignore
    • CI/CD blocks merge on type errors
  • End-to-end typing

    • Auto-generated types from Supabase
    • Shared interfaces for API and frontend
    • Typed responses from Server Actions
  • Validation at system boundaries

    • Zod schemas for input validation
    • Typed environment variables
    • Type checking in CI pipeline

Ideal use cases

Every JavaScript project (seriously, every one)
Enterprise and long-term applications
Team projects with multiple developers
Libraries, SDKs, and npm packages
Node.js APIs and backends
Regulation-compliant applications (auditable code)

Does your digital product comply with EU law?

EAA, WCAG, GDPR, NIS2. These regulations are already in force. Enter your URL and we'll check EU compliance. Free, results in 48h.

WCAG 2.1 AAGDPR / cookiesNIS2 / securityResults within 48h
Helps us scope the audit and tailor the first recommendations.

What you actually get within 48 hours

A short, concrete document with the most important recommendations. No commitment, no sales pitch in disguise.

What you get

  • A short PDF report (2-3 pages) reviewing the technical aspects of WCAG, GDPR and NIS2
  • The top 3 technical risks worth addressing first
  • A list of quick wins you can implement on your own or with any vendor
  • An optional short online call if you want to discuss the results

Who does it

  • The scan is run by a member of the EPKO team, supported by automated tools (Lighthouse, axe-core, our own checklists)
  • You correspond directly with the person who signed the report, with no account managers in between
  • The report covers the technical layer and does not replace a formal legal or certification audit
  • If you decide to work with us on remediation, Eryk (CTO) or Patryk (CEO) joins the project

In what form

  • PDF sent by email, accessible to screen readers
  • A short summary of the results in the email body
  • Materials stay with you and can be shared with your legal or IT team
  • Turnaround: 48 hours from request confirmation, on business days

Common questions about the audit

Let's build something that works without surprises

TypeScript is our standard. Every project we deliver is typed, tested, and ready to grow.

Book a free consultation

We respond within 24 hours