Technical Specification // Delivery Standards
Engineering Quality & Delivery Standards.
For CTOs, technical leads, and evaluating engineers: how CYBERSTYLE builds, tests, deploys, and secures modern web architectures.
Engineering Discipline
Built for speed, durability, and complete client ownership.
We do not build on closed proprietary platforms or bloated visual page builders. Every project is engineered using modern, open-standard technologies that your team or any qualified developer can inspect, extend, and deploy anywhere.
Spec 01
Frontend Engineering
Next.js 15, TypeScript & Responsive Systems
- Strict TypeScript compilation with zero implicit any types.
- Next.js App Router with server-side rendering and static edge optimization.
- Semantic HTML5 structure ensuring full keyboard and screen-reader accessibility (WCAG 2.1 AA).
- Tailwind CSS design token system for strict visual consistency and zero unused CSS bundle bloat.
- Hardware-accelerated WebGL / Three.js canvases with DPR limits [1.0, 1.5] and reduced-motion fallback.
Spec 02
Performance & Core Web Vitals
Sub-Second Loading & 90+ Lighthouse Target
- Target Largest Contentful Paint (LCP) under 1.2 seconds across mobile 4G connections.
- Zero Cumulative Layout Shift (CLS < 0.05) through explicit media aspect ratios and font preloading.
- Next-gen image delivery in AVIF / WebP with automatic responsive srcSets.
- Edge CDN caching headers configured for static assets and immutable vendor bundles.
- Client-side JavaScript bundles aggressively tree-shaken and code-split per route.
Spec 03
Backend & Data Infrastructure
PostgreSQL, Prisma & Event-Driven Workers
- Relational data integrity modeled via PostgreSQL schemas with strict foreign key constraints.
- Prisma ORM for type-safe database migrations, schema synchronization, and deterministic querying.
- Redis-backed BullMQ job queues for asynchronous background tasks, email dispatch, and webhook processing.
- Connection pooling and transaction boundaries configured to withstand concurrent inquiry surges.
- Automated database snapshot backup scripts with point-in-time recovery runbooks.
Spec 04
Security & Authentication
Argon2id Hashing, Isolation & Zero-Trust Secrets
- RFC 9106 Argon2id password hashing paired with cryptographic refresh token rotation.
- Tenant-level isolation and strict role-based access control (RBAC) across all portal endpoints.
- OWASP Top 10 compliance: parameterized queries, helmet security headers, and strict CORS configuration.
- Runtime request validation via Zod schemas to reject malformed or malicious payloads at the edge.
- Zero plain-text credentials in version control; environment variables strictly validated at server startup.
Spec 05
API & Integrations
Deterministic Webhooks & Fault-Tolerant Gateways
- Idempotent webhook consumers with cryptographic signature verification (e.g. Stripe, Resend).
- Exponential backoff and dead-letter queues to prevent data loss during third-party service outages.
- Clean separation between internal domain services and third-party vendor adapters.
- Structured JSON logging with unique correlation IDs per HTTP request for instant tracing.
Spec 06
Code Ownership & Handover
100% Repository Transfer & Zero Vendor Lock-In
- Complete Git repository transfer including full commit history and configuration files.
- Unminified, human-readable source code with inline architecture documentation.
- Docker Compose production manifests for turnkey self-hosting on standard Linux VPS infrastructure.
- Clear environment variable documentation, onboarding guides, and team handover sessions.
Full Code & Asset Ownership Policy
After final payment, you receive ownership of the custom work created for your project, as specified in your agreement. External tools remain subject to their own provider terms.
Deliverables are provided via private Git repository transfer with complete build scripts, Docker deployment configurations, and migration tools so your company retains total digital sovereignty.