Linux
Read guide How to Configure Fullscreen Android Activity
Configure immersive fullscreen Android activities: hide status bar and navigation bar using WindowInsetsControllerCompat in Kotlin and AndroidThemes XML.
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Software Development
Read guide Pointers and Strings in C: Memory Layout and Manipulation
Master pointers and strings in C: compare mutable char[] arrays vs immutable char* pointers, pointer arithmetic, string copying, and memory segment layout.
Software Development
Read guide How to Read String Input Safely in C (fgets vs scanf)
Read string inputs safely in C: replace dangerous gets() and scanf() with fgets(buf, sizeof(buf), stdin), strip trailing newlines, and prevent buffer overflows.
Linux
Read guide How to Decode QR Codes from Terminal in Ubuntu Linux
Decode QR codes and barcodes from the terminal in Ubuntu Linux: use zbarimg CLI, process image files, and extract decoded text payload streams.
Software Development
Read guide Array Initialization in C: Syntax, Memory, and Designated Initializers
Master array initialization in C: learn zero initialization, designated initializers [index] = val, multi-dimensional array memory strides, and memset.
Software Development
Read guide Understanding the 4 GCC Compilation Stages in Linux
Master the 4 stages of GCC compilation in Linux: Preprocessing (-E), Compilation (-S), Assembly (-c), and Linking (-o) with ELF object inspection.
Software Development
Read guide How to Calculate String Length in C (strlen vs Custom Loop)
Calculate string lengths in C: compare POSIX strlen() with custom while loop implementations, null terminator checks, and size_t return types.
Software Development
Read guide String Initialization in C: Syntax, Memory, and Examples
Master string initialization in C: compare char arrays vs char* string literals, null terminators (\0), stack memory allocation, and read-only segments.
Software Development
Read guide Balance, Bravery, and Belief for Software Architects
Essential mindset for system architects: strike Balance between speed and debt, exercise Bravery when making risky choices, and maintain team Belief.