Our Engineering Standards

We don't ship shortcuts

Every asset meets a fixed bar before delivery: strict TypeScript, verified test coverage, automated CI/CD, and hardened security defaults.

Strict TypeScript
90%+ Test Coverage
GitHub Actions CI/CD
100/100 Lighthouse

Engineered with Modern, Production-Ready Frameworks.

We leverage the exact same technologies used by top-tier engineering teams to ensure maximum performance and scale.

Next.js

Server-rendered React & Edge computing

Astro

Zero-JS static site generation for ultra-fast SEO

TypeScript

Strictly typed, enterprise-safe codebase

Tailwind CSS

Utility-first CSS & Glassmorphism UI

Framer Motion

Complex physics-based UI animations

Zustand / Redux

Complex global state management

Expo Go

Rapid testing & native compilation routing

React Native

Cross-platform native mobile UI

Flutter

High-performance native compiling

Reanimated

Native thread 60fps animations

SQLite

Offline-first local mobile storage

Node.js / Express

Event-driven backend architecture

GraphQL

Highly efficient data fetching APIs

RESTful Webhooks

Automated third-party system triggers

WebSockets

Real-time bi-directional data streams

tRPC

End-to-end typesafe APIs

PostgreSQL

Advanced relational database schemas

Redis

In-memory caching for high-load instances

MongoDB

Scalable NoSQL document storage

Supabase

Postgres BaaS with Row Level Security

Prisma ORM

Next-generation database ORM

Ubuntu Linux

Raw, hardened server environments

Docker

Isolated microservice containerization

Nginx

High-performance reverse proxy & load balancer

AWS (EC2 & S3)

Scalable cloud compute and object storage

Cloudflare Edge

Global CDN and DDoS protection layer

Visual Studio Code

Primary IDE & debugging environment

GitHub Actions

Automated CI/CD deployment pipelines

Jest / Playwright

Comprehensive Unit and E2E testing

Sentry

Real-time production error tracking

PM2

Advanced Node.js process management

TypeScript — Strict Mode

Full type coverage, zero compromises

Every codebase we ship uses TypeScript with strict: true. No implicit any. All function parameters and return types are explicitly declared. We use discriminated unions for state management and exhaustive checks with never.

  • strict: true in all tsconfig.json files
  • No implicit any — anywhere
  • Explicit return types on all functions
  • Discriminated unions for complex state
  • Path aliases configured (@/* → src/*)
  • Type-only imports where applicable
validcode ~ typescript
tsc --noEmit
✓ No type errors found (0 errors)
eslint src/ --ext .ts,.tsx --max-warnings 0
✓ 0 warnings, 0 errors

Test Coverage — 90%+ Floor

Unit, integration, and E2E baseline

Every Standard and above tier includes a configured testing setup. We enforce a 90% coverage floor for branches, functions, and lines via the CI pipeline. Tests fail the build if coverage drops.

  • Vitest configured with coverage reporting
  • 90% branch + function + line coverage floor
  • Testing-library for component tests
  • MSW for API mocking in tests
  • CI pipeline fails on coverage drop
  • Example test file for every component
validcode ~ testing
npm run test:coverage
▶ Running 214 tests across 18 suites...
✓ All tests passed (2.1s)
✓ Branches: 94.3% Functions: 97.1% Lines: 96.8%

CI/CD — GitHub Actions

Lint → Test → Build → Deploy in < 3 min

All packages ship with a multi-stage GitHub Actions workflow. The pipeline enforces lint, test, and build in isolation. Production deployments are gated behind all stages passing. Rollback is one git revert away.

  • Multi-stage workflow (lint → test → build → deploy)
  • Separate staging and production environments
  • Secrets managed via GitHub encrypted secrets
  • Deploy to VPS via SSH with zero-downtime swap
  • Slack/Discord notification on success + failure
  • Automatic rollback on failed health check
validcode ~ cicd
# .github/workflows/deploy.yml triggered
▶ [1/4] lint .............. ✓ passed
▶ [2/4] test .............. ✓ passed (214 tests)
▶ [3/4] build ............. ✓ 2.3s
▶ [4/4] deploy ............ ✓ Live in 2m 47s

Security Defaults

Hardened out of the box

Security isn't an afterthought. Every deployment blueprint includes nginx security headers, rate limiting, fail2ban configuration, UFW firewall rules, and environment variable validation at startup.

  • nginx: X-Frame-Options, HSTS, CSP headers
  • Rate limiting: 10 req/s per IP on API routes
  • fail2ban with SSH + nginx bad-actor rules
  • UFW: only ports 22, 80, 443 open
  • Environment variable validation on startup (zod)
  • No hardcoded secrets — .env.example always provided
validcode ~ security
nginx -t && systemctl reload nginx
✓ nginx: configuration test successful
fail2ban-client status nginx-http-auth
✓ Status for the jail: nginx-http-auth — active

Performance — 100 Lighthouse

Core Web Vitals ready by default

Astro-based templates ship with perfect Lighthouse scores by default. Zero unused JS on initial load. Images are optimised, fonts use font-display: swap, and CSS is purged by Tailwind's content scanner.

  • Astro static generation — 0KB runtime JS default
  • Tailwind CSS purge — only used classes shipped
  • Font-display: swap on Google Fonts
  • Proper meta viewport and charset
  • Semantic HTML5 for accessibility score
  • Gzip compression configured in nginx
validcode ~ performance
lighthouse https://validcodesolutions.com --only-categories=performance
▶ Auditing page...
✓ Performance: 100 / 100
✓ Accessibility: 100 / 100
✓ Best Practices: 100 / 100
✓ SEO: 100 / 100

Documentation Standard

README-driven development

Every package ships with a structured README: setup steps (under 5 commands), environment variables table, architecture decision records, and a deployment checklist. Code comments explain why, not what.

  • README: setup in < 5 commands
  • .env.example with all variables documented
  • Architecture overview diagram (mermaid)
  • JSDoc on all exported functions
  • CHANGELOG.md format (keepachangelog)
  • Deployment checklist included
validcode ~ documentation
# Getting started — from zero to running
git clone <your-repo> && cd my-app
cp .env.example .env && npm install
npm run dev
✓ Running at http://localhost:4321 (< 3s)

Our Standards Guarantee

If any delivered codebase fails to meet the standards listed on this page — type errors, failing tests, missing CI/CD config — we'll fix it or refund you. No arguments.

Start with Standards through our secure portal