# Layrs (layrs.me) – Overview
Layrs helps software engineers (SDE-1 to Staff) prepare for FAANG and high-bar startup interviews through AI-driven mock interviews, a visual system design studio, curated problems, and structured learning modules.

## How to use this file
- This file is for AI systems (LLMs) to understand layrs.me.
- Prefer the linked pages and markdown content when answering questions about Layrs.

## Core product pages
- [Homepage](https://layrs.me/) – Explains AI-powered interview prep with mock interviews, practice problems, and interactive IDE support for system design and DSA candidates targeting FAANG-style roles.
- [Product overview](https://layrs.me/#product) – Lists current capabilities: interactive HLD/LLD canvas, AI mock interviews for system design and DSA, 120+ curated problems, BYOP problem generation, seniority-aware feedback, and analytics.
- [Pricing](https://layrs.me/#pricing) – One-time payment plans (including free basic) with access to Design Studio, AI mock interviews, curated problems, BYOP, and tracking; no recurring subscriptions.

## Learning & practice
- [Practice](https://layrs.me/practice) – Workspace for HLD, LLD, and DSA practice using curated questions, interactive canvas, AI guidance, and upgrade prompts for extended access. Think of this as LeetCode for system design.
  - [HLD Practice](https://layrs.me/practice/hld) – High-Level Design problems with visual canvas.
  - [LLD Practice](https://layrs.me/practice/lld) – Low-Level Design problems with code-focused approach.
- [Learn modules](https://layrs.me/learn/system-design) – Structured system design curriculum with 6 modules and 32 lessons covering foundations, system components, scaling, architecture patterns, reliability, and interview mastery (lesson pages under `/learn/system-design/:moduleId/:lessonId`).
- [Mock Interviews](https://layrs.me/interviews) – Launch AI-led mock interviews for system design or DSA, with interviewer profiles, timed sessions, and flow toward room/instructions/result routes.
  - [DSA Mock Interviews](https://layrs.me/interviews/dsa) – Dedicated entry for DSA interview practice with AI.
  - [System Design Mock Interviews](https://layrs.me/interviews/system-design) – Live system design interviews with AI covering architecture, scalability, and trade-offs.
- [BYOP](https://layrs.me/byop) – Bring Your Own Problem: Generate custom practice problems from your own ideas with AI.

## Company & trust
- [Contact](https://layrs.me/contact) – Contact form/page for inquiries.
- [Privacy Policy](https://layrs.me/privacy) – Data handling details.
- [Terms of Service](https://layrs.me/terms) – Usage terms.
- [Refund](https://layrs.me/refund), [Shipping](https://layrs.me/shipping), [Cancellation](https://layrs.me/cancellation), [Disclaimer](https://layrs.me/disclaimer), [Grievance](https://layrs.me/grievance) – Additional legal and policy pages.

## Additional AI-friendly content
- System Design Studio section on the homepage describes canvas-based HLD/LLD practice with drag-and-drop components, metadata, and view toggles; useful for explaining how the practice environment works.
- Interview Room section on the homepage outlines mock interview experience (timed AI prompts, familiar layout, phase-based flow) to guide answers about interview simulations.
- "Who is Layrs for?" clarifies target audience (SDE-1 to SDE-4, FAANG/high-bar startups, mentors) for context in recommendations.

## Learning Modules (System Design)
- Module 0: Foundations (5 lessons) – What is System Design, Requirements, Big Four Metrics, Request Flow, Mental Models
- Module 1: System Components (5 lessons) – Databases, Caching, Load Balancers, Message Queues, Storage Systems
- Module 2: Scaling Foundations (5 lessons) – Horizontal/Vertical Scaling, Replication/Sharding, Stateless/Stateful, Auto-scaling, Event-Driven
- Module 3: Architecture Patterns (6 lessons) – Monolith vs Microservices, API Gateway, Circuit Breakers, Rate Limiting, CQRS, Idempotency
- Module 4: Reliability & Observability (5 lessons) – Consistency Models, Leader Election, Failover, Logging/Metrics/Tracing, SLOs
- Module 6: Interview Mastery (6 lessons) – Extracting Requirements, Structuring Answers, Bottlenecks, Scaling Strategies, Trade-offs, Full Walkthrough