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    ai
    01-models-and-context
    Context Engineering Tokens and Sampling Model Architecture: Dense vs. MoE Reasoning and Thinking
    02-Agent
    The Agent Loop and Tool Use MCP and Skills Memory and State Multi-Agent Orchestration Evaluation and Observability
    03-applications-and-production
    RAG and Retrieval-Augmented Generation Prompt Engineering and Structured Output Cost, Performance, and Reliability Security and Protection Production Checklist
    compilers
    01-lexical-analysis
    Regular Expressions and Automata Lexer Design
    02-syntax-analysis
    Recursive Descent and LL Analysis LR Parsing AST Design and Error Recovery
    03-semantic-analysis
    Symbol Tables and Scopes Type Systems
    04-intermediate-representation
    SSA Form LLVM IR in Practice
    05-optimization
    Data Flow Analysis Classic Optimizations Register Allocation
    06-code-generation
    Instruction Selection Target Code and ABI
    07-runtime
    Garbage Collection Linking and Loading
    08-compilation-technology-applications
    JIT Compilation DSL Design Compile-Time Metaprogramming LSP and Language Servers
    devops
    Bluetooth Operations Manual Caddy Operations Manual Certificate Operations Manual Database Operations Manual Disk Operations Manual DNS Operations Manual Docker Operations Manual Git Operations Manual Grafana Operations Manual Helm Operations Manual Kubernetes Operations Manual Kernel Operations Manual Media Operations Manual mihomo Operations Manual Network Interface Operations Manual nftables Operations Manual Perforce Operations Manual Gentoo Package Management Handbook Prometheus Operations Manual SSH Operations Manual Storage Operations Manual systemd Operations Manual Tailscale Operations Manual
    runbooks
    wildwindstudio.com Certificate Auto-Renewal + Tencent Cloud CLB Rebinding Tencent Cloud EdgeOne + COS Deployment Guide
    distributed-systems
    01-basic-theory
    CAP and Consistency Models Time and Clocks Fault Models
    02-consensus-protocols
    Raft Paxos Consensus in Practice
    03-replication-and-consistency
    Replication Strategies Conflict Resolution Distributed Transactions
    04-partitioning-and-routing
    Consistent Hashing Sharding Strategies Dynamic Rebalancing
    05-members-and-discovery
    Failure Detection Gossip Protocol Service Discovery
    06-distributed-storage
    Distributed Read/Write Path Anti-Entropy and Data Repair Storage System Instances
    07-messages-and-streams
    Message Semantics Kafka Architecture Consumer Groups and Collaboration
    08-observability
    Distributed Tracing Metrics and Alerts
    game-development
    Making Action Sprite Sequences Hit on Time in Combat From Character Concept Art to Animation Frame Sequences Decouple Idle Settlement from Call Frequency
    hardware
    01-basic-electricity
    Basic Physical Quantities and Laws DC Circuit Analysis
    02-passive-components
    Resistor Capacitor Inductors and Transformers
    03-semiconductor
    Band Theory and Doping PN Junction Diode BJT Bipolar Junction Transistor MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) Power Device Overview
    04-analog-circuits
    Fundamentals of Amplifier Circuits Operational Amplifier (Op-Amp) Power Supply Circuits
    05-digital-circuits
    Logic Gates and Boolean Algebra Combinational Logic Circuits Sequential Logic Circuits
    06-interfaces-and-communication
    Logic Levels and Interface Physical Layers Serial Bus Protocols USB and Type-C PCIe and High-Speed Interconnects Display and Camera Interfaces
    07-wireless-communications
    WiFi and Bluetooth IoT Wireless Protocols
    08-power-and-protection
    Charging Protocols and Fast Charging Battery Technology Protection Circuits
    09-embedded-systems
    MCU Selection and Development Ecosystem Common Peripheral Circuits Sensors Storage Technologies
    10-practices-and-tools
    Measurement Instruments and Tools PCB Design Fundamentals Debug and Programming Interfaces
    homelab
    What Local Large Models Can Help With: Boundaries, Scenarios, and Automation Local LLM Deployment Notes Full-Stack Monitoring: Prometheus + Grafana + Loki + Tempo + Bark Practical Home Network Architecture: Wired Mesh, Single-Arm Side Router, and Fail-Open Network Failure Recovery Manual rathole + Caddy Intranet Penetration: A Complete Solution from CGNAT to Public HTTPS Server Lifecycle: Onboarding and Removal Software Stack Inventory System Drive Backup and Recovery Scheduled Tasks and Automated Scheduling
    linux-kernel
    01-process-management
    task_struct and Process Lifecycle Scheduler Linux Context Switching Signals and ptrace
    02-memory-management
    Virtual Memory VMA and Maple Tree Physical Memory Management Slab and kmalloc Page Reclaim and Swap
    03-file-system
    VFS — Virtual File System Layer Page Cache and I/O Filesystem Implementation VFS Advanced ZFS — Not Part of the Kernel, But Unavoidable NFS (Network File System) Temporary and Pseudo Filesystems
    04-interrupts-and-clocks
    Interrupt Subsystem Clocks and Timers Time Management
    05-synchronization-mechanisms
    Locking Mechanisms RCU (Read-Copy-Update) Synchronization Debugging
    06-network-subsystem
    Network Protocol Stack Overview TCP/IP Protocol Stack Netfilter and BPF/XDP Other Network Topics RDMA (Remote Direct Memory Access)
    07-block-device-layer
    Block Device Layer NVMe and Storage
    08-ebpf-and-observability
    eBPF Basics eBPF Program Types Tracing and Debugging
    09-security-mechanisms
    LSM and Access Control Kernel Hardening Crypto API and Storage Encryption
    10-drivers-and-device-model
    Device Model PCIe and USB Driver Model DRM and Graphics IOMMU and DMA API
    11-kernel-development-and-build
    Kbuild and Modules Debugging and Testing Live Patching
    12-containers-and-primitives
    Namespaces cgroup
    13-kvm-and-virtualization
    KVM Architecture KVM Memory and Device Virtualization QEMU and KVM Collaboration
    14-power-management
    cpufreq and cpuidle Suspend and Resume
    networking
    01-l2-data-link
    Ethernet and MAC ARP and NDP Switching, Bridging, and VXLAN
    02-l3-network-layer
    IPv4 Protocol IPv6 Protocol ICMP and PMTUD Routing and BGP
    03-l4-transport-layer
    TCP UDP and QUIC Transport Layer Ports and NAT Traversal
    04-DNS
    DNS Protocol and Resolution DNSSEC and DNS Security DNS Privacy: DoH, DoT, DoQ, ODoH DNS Infrastructure
    05-tls-and-pki
    TLS 1.2 Handshake TLS 1.3 Handshake Certificates and PKI mTLS and Mutual Authentication
    06-HTTP
    HTTP/1.1 HTTP/2 HTTP/3 Reverse Proxy and Load Balancing REST and API Design WebSocket and SSE
    07-proxy-protocol
    Forward Proxy Transparent Proxy and TUN Proxy Protocol Comparison
    08-vpn-and-tunnels
    WireGuard Protocol Tailscale Architecture IPsec and IKEv2 Tunnel Technology Comparison
    09-email-protocols
    SMTP IMAP vs. POP3
    10-real-time-communication
    WebRTC Streaming Protocols MQTT
    11-messages-and-events
    Webhooks and Callbacks Message Queue Protocols
    12-security-protocols
    SSH Protocol OAuth2 and OpenID Connect Authentication Frameworks
    13-network-diagnostics
    tcpdump and Wireshark Network Troubleshooting Methodology Network Performance and Tuning
    14-protocol-design-and-evolution
    Binary Protocol Design Protocol Evolution and Compatibility
    rust
    01-ownership-and-borrowing
    Ownership Model References and Borrowing Lifetime
    02-type-system
    Primitive Types and Memory Layout Enums and Pattern Matching Structs and Traits
    03-advanced-generics-and-traits
    Generics and Monomorphization Trait Objects and Dynamic Dispatch Associated Types and GATs
    04-smart-pointers-and-memory
    Box, Rc, Arc Cell, RefCell, Mutex: Interior Mutability Allocator and Memory Layout
    05-error-handling
    Result and Option Error Trait and Ecosystem
    06-concurrency-and-asynchrony
    Send and Sync Internal Mechanisms of async/await tokio Runtime Threads and Synchronization Primitives
    07-unsafe-rust
    Raw Pointers and FFI unsafe Blocks and the Soundness Contract Inline Assembly
    08-macro-system
    Declarative Macros (macro_rules!) Procedural Macros
    09-cargo-and-build
    Cargo.toml Deep Dive Conditional Compilation and cfg Workspace and Project Management
    10-standard-library-depth
    Iterator and Closures Collection Types Strings and Path
    11-ffi-and-system-interaction
    C ABI and bindgen Kernel Modules and no_std
    12-async-ecosystem
    Tower and Middleware tonic (gRPC)
    systems-programming
    01-elf-and-binary-formats
    ELF File Format Dynamic Linking and ld.so Loading and Startup: _start → main
    02-system-call-abi
    Linux x86-64 System Call ABI ARM64 System Call ABI Anatomy of glibc Syscall Wrappers
    03-processes-and-memory
    Process Memory Layout malloc Internals: ptmalloc2 ASLR and Security Hardening
    04-signals-and-exceptions
    User-Space Signal Handling ptrace and Debugging Interfaces
    05-io-and-file-systems
    Buffered I/O (stdio) io_uring: Revolutionary Asynchronous IO epoll and Event-Driven Programming
    06-ipc-and-synchronization
    futex: The Kernel Hop in Userspace Locks Pipes and socketpair Shared Memory and Semaphores
    07-toolchain-and-compilation
    GCC and Clang Internals Linker Scripts and Relocations Make / CMake / Meson Build Systems
    08-performance-and-debugging
    Deep Dive into perf Valgrind and Sanitizers in Practice ftrace and bpftrace User-Space Tracing
    theory
    01-information-theory
    Entropy and Information Measures KL Divergence and Cross-Entropy Source Coding and Compression Channel Capacity and Coding Rate-Distortion and the Information Bottleneck Information Theory in LLMs
    tools
    chezmoi CLI Toolbox Ghostty My Toolchain Zsh Environment WezTerm Zellij
    hyprland
    Hyprland Ecosystem Overview Hyprland Configuration (Lua) Quickshell Shell Hyprland Waybar Configuration and Theme Hyprland Companion Tools
    nvim
    Neovim Overview Neovim Plugins and Keybindings
    Tags
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