Reference Sheets

AWS reference covering accounts, regions, IAM, networking, compute, storage, databases, serverless, messaging, observability, security, reliability, cost, infrastructure as code, and incident readiness.

Bash reference covering quoting, parameters, arrays, tests, pipelines, functions, traps, files, processes, portability, security, debugging, and production-grade scripting.

Beginner-to-advanced Docker reference covering images, containers, Dockerfiles, BuildKit, cache, lifecycle, storage, networking, Compose, registries, multi-platform builds, security, diagnostics, and production practices.

High-density Git cheat sheet covering interactive staging, branch rebase workflows, reflog recovery, and visual branch architecture.

Beginner-to-advanced Android application reference covering Kotlin essentials, platform components, lifecycle, state, resources, intents, permissions, storage, and scalable app architecture.

Beginner-to-advanced Kotlin collection reference for Android, covering mutability, transformations, filtering, grouping, aggregation, sequences, allocation, complexity, concurrency boundaries, and production patterns.

Beginner-to-advanced React reference covering component design, JSX, state, events, forms, Hooks, effects, context, reducers, Suspense, errors, performance, accessibility, and testing.

Essential syntax reference for TypeScript classes, generic constraints, type-only modifiers, control flow analysis, and type evaluation.