6 min read
Coding agents use different project memory files like AGENTS.md, CLAUDE.md, and GEMINI.md. Symlinks let them share one source of truth.
Tags
- 22 writings
- since 2024
2026
Spring
2025
Autumn
4 min read
Encapsulating cross-platform functions and isolating OS-specific configs using Nushell.
Summer
7 min read
How to set true system-wide environment variables on macOS with a simple Launch Agent and shell script, so GUI apps and every shell see them.
6 min read
A brief walkthrough of how select, poll, and epoll are implemented.
3 min read
Fix apt install errors caused by no free space in /var/cache/apt/archives by locating the full partition and using a temporary cache path.
15 min read
A walkthrough of the five I/O models on Linux, with C and Java implementations.
Spring
2 min read
Set up a proxy for Git operations, both for HTTP/HTTPS and SSH connections.
2024
Autumn
3 min read
Notes on phone home-screen personalization, including color palettes, icon packs, widgets, fonts, and Samsung Theme Park.
Summer
8 min read
An introduction to the Linux operating system, file operations, and permission management
Spring
2 min read
Move an installed WSL distribution to another drive by exporting, unregistering, importing, and restoring the default user.
31 min read
File system basics, directory management with FCBs and inodes, file sharing via hard and symbolic links, physical file structures, and free space management.
30 min read
I/O controllers, channels, and control modes (polling, interrupt, DMA); device data structures; disk scheduling (FCFS, SSTF, SCAN, CSCAN); buffering.
16 min read
Causes and necessary conditions of deadlock, plus prevention, avoidance, detection, and recovery, including the Banker's Algorithm.
8 min read
Levels of processor scheduling, scheduling queue models and criteria, scheduling algorithms, and real-time scheduling.
4 min read
Notes on process scheduling triggers, evaluation metrics, and common algorithms such as FCFS, SJF, RR, MLFQ, EDF, and LLF.
8 min read
Threads as the basic unit of scheduling, thread control, synchronization with mutexes, condition variables, and semaphores, and ULT vs KLT.
12 min read
Types of IPC: shared memory, pipes, message-passing systems, mailboxes, and client-server mechanisms like sockets and RPC.
2 min read
Notes on concurrency, parallelism, CPU cores, hardware threads, processes, and threads in operating systems.
22 min read
Process synchronization in operating systems, covering critical sections, semaphores, hardware synchronization, and classic synchronization problems.
11 min read
OS process management: precedence graphs and program execution, process description, and process control.
12 min read
An introduction to processes and threads
Winter
9 min read
An overview of operating systems, their definition, goals and roles, history, basic characteristics, main functions, and structural design.