philiprehberger

In-memory LRU cache with TTL, stale-while-revalidate, and tag invalidation

Cron job scheduler with overlap prevention, timezones, and job management

Simple in-memory feature flag system with percentage rollouts and targeting

Simple cross-platform hashing utilities

Type-safe fetch wrapper with interceptors, retries, and base URL support

Decode and inspect JWTs — no verification, typed payload, tiny

Structured JSON logger with child loggers, redaction, and pretty dev output

Lightweight schema validation library with Zod-like API in under 3KB

Next.js API route middleware: compose, validation, CSRF protection, and security headers

Release-based SSH deployment for Next.js apps with symlinks, dependency caching, and PM2 management

Next.js Image wrappers with skeleton loading and error fallback

In-memory rate limiting for Node.js API routes with configurable windows and presets

Lightweight form management hook with Zod validation, debounced field validation, and common validators

Dark/light/system theme provider for React with localStorage persistence and system preference detection

Accessible React UI component library with Tailwind CSS

Type-safe prompt template builder for LLM APIs