graph TD
    %% Root Node
    Root(Software Architect) --> Found[Foundations & Responsibilities]
    Root --> Arch[Design & Architecture Patterns]
    Root --> Tech[Technical & Data Skills]
    Root --> Ops[Operations & Management]

    %% Foundations Sub-nodes
    Found --> F1(Application Architecture)
    Found --> F2(Solution Architecture)
    Found --> F3(Enterprise Architecture)
    Found --> F4(Tech & Design Decisions)
    Found --> F5(Enforcing Standards)

    %% Architecture Patterns Sub-nodes
    Arch --> A1(SOLID & DDD)
    Arch --> A2(Microservices)
    Arch --> A3(Distributed Systems)
    Arch --> A4(Event-Driven / CQRS)
    Arch --> A5(Serverless)

    %% Technical & Data Sub-nodes
    Tech --> T1(Programming Languages)
    Tech --> T2(SQL & NoSQL Databases)
    Tech --> T3(REST, GraphQL & gRPC)
    Tech --> T4(Messaging Queues)
    Tech --> T5(Security & OWASP)

    %% Operations & Management Sub-nodes
    Ops --> O1(Cloud Providers & IaC)
    Ops --> O2(Containers & CI/CD)
    Ops --> O3(TOGAF & UML)
    Ops --> O4(Agile / SaFE / Scrum)
    Ops --> O5(ITIL & PMI)

    %% Styling (GitHub-friendly colors)
    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Found fill:#0969da,stroke:#24292f,color:#ffffff
    style Arch fill:#8250df,stroke:#24292f,color:#ffffff
    style Tech fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Ops fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Android Developer) --> Found[Foundations]
    Root --> UI[UI & UX]
    Root --> Arch[Architecture & Patterns]
    Root --> Deploy[Testing & Deployment]

    Found --> F1(Kotlin)
    Found --> F2(Java)
    Found --> F3(OOP Basics)
    Found --> F4(Android Studio)
    Found --> F5(Gradle Build System)

    UI --> U1(Jetpack Compose)
    UI --> U2(XML Layouts)
    UI --> U3(Material Design)
    UI --> U4(Navigation Component)
    UI --> U5(Animations & Transitions)

    Arch --> A1(MVVM / MVI)
    Arch --> A2(Clean Architecture)
    Arch --> A3(Dependency Injection / Hilt)
    Arch --> A4(Coroutines & Flow)
    Arch --> A5(Repository Pattern)

    Deploy --> D1(Unit Testing)
    Deploy --> D2(UI Testing)
    Deploy --> D3(Firebase Integration)
    Deploy --> D4(Google Play Console)
    Deploy --> D5(CI/CD Pipelines)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Found fill:#0969da,stroke:#24292f,color:#ffffff
    style UI fill:#8250df,stroke:#24292f,color:#ffffff
    style Arch fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Deploy fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Python Developer) --> Core[Core Python]
    Root --> Web[Web Development]
    Root --> Data[Data & AI]
    Root --> Ops[Tooling & DevOps]

    Core --> C1(Syntax & Data Types)
    Core --> C2(Object-Oriented Programming)
    Core --> C3(Functional Programming)
    Core --> C4(Concurrency & AsyncIO)
    Core --> C5(Type Hinting)

    Web --> W1(Django)
    Web --> W2(FastAPI)
    Web --> W3(Flask)
    Web --> W4(REST API Design)
    Web --> W5(Database ORMs)

    Data --> D1(Pandas & NumPy)
    Data --> D2(Scikit-Learn)
    Data --> D3(PyTorch / TensorFlow)
    Data --> D4(Data Visualization)
    Data --> D5(ETL Pipelines)

    Ops --> O1(Poetry / pip / venv)
    Ops --> O2(Pytest & Unittest)
    Ops --> O3(Docker)
    Ops --> O4(GitHub Actions)
    Ops --> O5(Code Formatting / Ruff)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Core fill:#0969da,stroke:#24292f,color:#ffffff
    style Web fill:#8250df,stroke:#24292f,color:#ffffff
    style Data fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Ops fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Vibe Coding) --> Mindset[Mindset & Planning]
    Root --> Tools[AI Tooling]
    Root --> Prompt[Prompt Engineering]
    Root --> Quality[Quality & Maintenance]

    Mindset --> M1(MVP Definition)
    Mindset --> M2(Step-by-Step Execution)
    Mindset --> M3(Tech Stack Selection)
    Mindset --> M4(Context Documents)
    Mindset --> M5(Spec-Driven Development)

    Tools --> T1(Cursor / Windsurf)
    Tools --> T2(Claude Code / Copilot)
    Tools --> T3(Lovable / v0)
    Tools --> T4(MCP Integrations)
    Tools --> T5(Local LLMs)

    Prompt --> P1(Specific Tasking)
    Prompt --> P2("Act As" Framing)
    Prompt --> P3(Few-Shot Examples)
    Prompt --> P4(Iterative Refinement)
    Prompt --> P5(Context Clearing)

    Quality --> Q1(Git Version Control)
    Quality --> Q2(Test-Driven Development)
    Quality --> Q3(Security Audits)
    Quality --> Q4(Refactoring Sessions)
    Quality --> Q5(AI-Assisted Debugging)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Mindset fill:#0969da,stroke:#24292f,color:#ffffff
    style Tools fill:#8250df,stroke:#24292f,color:#ffffff
    style Prompt fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Quality fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(System Design) --> Concepts[Core Concepts]
    Root --> Scaling[Scaling & Performance]
    Root --> Data[Data Storage]
    Root --> Network[Networking & Security]

    Concepts --> C1(CAP Theorem)
    Concepts --> C2(ACID Properties)
    Concepts --> C3(Load Balancing)
    Concepts --> C4(Caching Strategies)
    Concepts --> C5(CDNs)

    Scaling --> S1(Horizontal vs Vertical)
    Scaling --> S2(Microservices)
    Scaling --> S3(Message Queues)
    Scaling --> S4(Rate Limiting)
    Scaling --> S5(Database Sharding)

    Data --> D1(SQL Databases)
    Data --> D2(NoSQL Databases)
    Data --> D3(Data Warehouses)
    Data --> D4(Replication)
    Data --> D5(Partitioning)

    Network --> N1(OSI & TCP/IP Models)
    Network --> N2(HTTPS / TLS)
    Network --> N3(API Gateways)
    Network --> N4(DDoS Protection)
    Network --> N5(Service Mesh)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Concepts fill:#0969da,stroke:#24292f,color:#ffffff
    style Scaling fill:#8250df,stroke:#24292f,color:#ffffff
    style Data fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Network fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(API Design) --> Fund[Fundamentals]
    Root --> Styles[API Styles]
    Root --> Sec[Security & Auth]
    Root --> Ops[Lifecycle & Operations]

    Fund --> F1(HTTP Methods)
    Fund --> F2(Status Codes)
    Fund --> F3(Headers & Cookies)
    Fund --> F4(URI Design)
    Fund --> F5(Pagination & Filtering)

    Styles --> S1(RESTful APIs)
    Styles --> S2(GraphQL)
    Styles --> S3(gRPC)
    Styles --> S4(SOAP)
    Styles --> S5(WebSockets / SSE)

    Sec --> C1(JWT & OAuth 2.0)
    Sec --> C2(API Keys)
    Sec --> C3(Rate Limiting)
    Sec --> C4(CORS)
    Sec --> C5(Input Validation)

    Ops --> O1(OpenAPI / Swagger)
    Ops --> O2(Versioning Strategies)
    Ops --> O3(Mocking & Testing)
    Ops --> O4(Monitoring & Logging)
    Ops --> O5(API Gateways)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Fund fill:#0969da,stroke:#24292f,color:#ffffff
    style Styles fill:#8250df,stroke:#24292f,color:#ffffff
    style Sec fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Ops fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(React Native) --> Core[Core Foundations]
    Root --> UI[UI & Navigation]
    Root --> State[State & Data]
    Root --> Native[Native & Deployment]

    Core --> C1(JavaScript / TypeScript)
    Core --> C2(React Basics & JSX)
    Core --> C3(Components & Props)
    Core --> C4(Hooks)
    Core --> C5(Flexbox Layout)

    UI --> U1(React Navigation)
    UI --> U2(Animations)
    UI --> U3(Responsive Design)
    UI --> U4(Accessibility)
    UI --> U5(Platform-Specific Code)

    State --> S1(Context API)
    State --> S2(Redux / Zustand)
    State --> S3(React Query)
    State --> S4(AsyncStorage)
    State --> S5(Offline Support)

    Native --> N1(Native Modules)
    Native --> N2(Expo Framework)
    Native --> N3(App Store / Play Store)
    Native --> N4(CI/CD for Mobile)
    Native --> N5(Performance Profiling)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Core fill:#0969da,stroke:#24292f,color:#ffffff
    style UI fill:#8250df,stroke:#24292f,color:#ffffff
    style State fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Native fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Linux Fundamentals) --> Cmd[Core Commands]
    Root --> FS[File System & Permissions]
    Root --> Net[Networking]
    Root --> SysAdmin[System Administration]

    Cmd --> C1(ls, cd, grep, find)
    Cmd --> C2(awk & sed)
    Cmd --> C3(Bash Scripting)
    Cmd --> C4(Process Management)
    Cmd --> C5(Text Processing)

    FS --> F1(chmod & chown)
    FS --> F2(Inodes & Links)
    FS --> F3(LVM & Partitioning)
    FS --> F4(Mounting Filesystems)
    FS --> F5(Standard Directory Layout)

    Net --> N1(SSH & SCP)
    Net --> N2(iptables / ufw)
    Net --> N3(DNS & curl)
    Net --> N4(netstat / ss)
    Net --> N5(Network Interfaces)

    SysAdmin --> S1(systemd & Services)
    SysAdmin --> S2(cron Jobs)
    SysAdmin --> S3(Package Management)
    SysAdmin --> S4(System Logging)
    SysAdmin --> S5(Containerization Basics)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Cmd fill:#0969da,stroke:#24292f,color:#ffffff
    style FS fill:#8250df,stroke:#24292f,color:#ffffff
    style Net fill:#1a7f37,stroke:#24292f,color:#ffffff
    style SysAdmin fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Docker & Containers) --> Concepts[Core Concepts]
    Root --> Images[Image Management]
    Root --> Orchestration[Container Orchestration]
    Root --> DevOps[DevOps Integration]

    Concepts --> C1(Containers vs VMs)
    Concepts --> C2(Docker Engine)
    Concepts --> C3(Namespaces & Cgroups)
    Concepts --> C4(Docker CLI Basics)
    Concepts --> C5(Container Lifecycle)

    Images --> I1(Writing Dockerfiles)
    Images --> I2(Image Layers)
    Images --> I3(Multi-stage Builds)
    Images --> I4(Image Optimization)
    Images --> I5(Registries / Docker Hub)

    Orchestration --> O1(Docker Compose)
    Orchestration --> O2(Docker Swarm)
    Orchestration --> O3(Container Networking)
    Orchestration --> O4(Volumes & Persistence)
    Orchestration --> O5(Health Checks)

    DevOps --> D1(CI/CD Pipelines)
    DevOps --> D2(Kubernetes Basics)
    DevOps --> D3(Monitoring & Logging)
    DevOps --> D4(Security Scanning)
    DevOps --> D5(Infrastructure as Code)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Concepts fill:#0969da,stroke:#24292f,color:#ffffff
    style Images fill:#8250df,stroke:#24292f,color:#ffffff
    style Orchestration fill:#1a7f37,stroke:#24292f,color:#ffffff
    style DevOps fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Git & GitHub) --> Fund[Git Fundamentals]
    Root --> Branch[Branching & Collaboration]
    Root --> Features[GitHub Features]
    Root --> Advanced[Advanced Workflows]

    Fund --> F1(init & clone)
    Fund --> F2(add, commit, status)
    Fund --> F3(log & diff)
    Fund --> F4(.gitignore)
    Fund --> F5(Remote Repositories)

    Branch --> B1(branch & checkout)
    Branch --> B2(merge & rebase)
    Branch --> B3(stash)
    Branch --> B4(Resolving Conflicts)
    Branch --> B5(detached HEAD)

    Features --> F3(Pull Requests)
    Features --> F4(Issues & Projects)
    Features --> F5(GitHub Actions)
    Features --> F1(Code Review Tools)
    Features --> F2(Wikis & Discussions)

    Advanced --> A1(Gitflow Workflow)
    Advanced --> A2(Forking Workflow)
    Advanced --> A3(Cherry-picking)
    Advanced --> A4(Submodules)
    Advanced --> A5(Git Hooks)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Fund fill:#0969da,stroke:#24292f,color:#ffffff
    style Branch fill:#8250df,stroke:#24292f,color:#ffffff
    style Features fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Advanced fill:#9a6700,stroke:#24292f,color:#ffffff

graph TD
    Root(Code Review) --> Prep[Preparation & Scope]
    Root --> Quality[Code Quality & Semantics]
    Root --> Arch[Architecture & Design]
    Root --> Process[Process & Culture]

    Prep --> P1(Clear PR Descriptions)
    Prep --> P2(Small, Focused Changes)
    Prep --> P3(Automated Checks First)
    Prep --> P4(Context Provision)
    Prep --> P5(Reviewer Selection)

    Quality --> Q1(Naming Conventions)
    Quality --> Q2(DRY Principle)
    Quality --> Q3(Error Handling)
    Quality --> Q4(Test Coverage)
    Quality --> Q5(Inline Documentation)

    Arch --> A1(Design Patterns)
    Arch --> A2(API Semantics)
    Arch --> A3(Performance Impact)
    Arch --> A4(Security Vulnerabilities)
    Arch --> A5(Scalability Concerns)

    Process --> C1(Constructive Feedback)
    Process --> C2(Timely Responses)
    Process --> C3(Knowledge Sharing)
    Process --> C4(Blameless Culture)
    Process --> C5(Continuous Improvement)

    style Root fill:#24292f,stroke:#57606a,stroke-width:4px,color:#ffffff
    style Prep fill:#0969da,stroke:#24292f,color:#ffffff
    style Quality fill:#8250df,stroke:#24292f,color:#ffffff
    style Arch fill:#1a7f37,stroke:#24292f,color:#ffffff
    style Process fill:#9a6700,stroke:#24292f,color:#ffffff