Genuine question, why would I need a terminal multiplexer when I am using a tiling window manager? I saw a lot of people using them in normal desktop environments which makes sense but why in a tiling window manager?

It is just preference and consistency with other APIs imo. However, personally when I see LEDEnable or LEDDisable I feel like a teeny tiny bit more will happen inside the function meanwhile LEDState is like only changing a variable or something. Also I would like LED_Set(bool enabled) or if there are more LED_SetEnabled(bool b) better.

I wish that is how the world worked. They are either gonna think I am a paranoid weirdo and not do it or reluctantly install it ONLY for me.

TBF it is not complicated but it does use the simplest form of pointer arithmetic and order of operation of (++var) or (*var++). Considering OP couldn’t write a basic version of this I did not want to put pressure on him. If you can understand it as a beginner good for you! You must remember that a lot of developers struggle to learn pointers in the first place for some reason. I blame AI.

EDIT: Also I did not say this is advanced, just not beginner friendly

I think you are forgetting that in a lot of countries overwhelming majority of the population uses Whatsapp for communication and you can’t do anything about it.

It is not beginner friendly but it is optimized. It doesn’t allocate memory or whatever. I don’t expect you to understand all this but I did it for fun anyway.

int print_file(const char* buffer)
{
    // Validate the buffer
    if (!buffer || *buffer == '\0') return 1;

    // Prepare the first line prefix
    unsigned int line = 1;
    printf("%4d\t", line); // You could pre-format it if u want

    const char* cursor = buffer; // The pointer that points to the first char
    const char* linestart = cursor; // The start of the line
    char ch; // Character register

    while (true) {
        ch = *cursor++; // Read character THEN advance the cursor.

        // Check if the character is null or is newline or windows thing

        if (ch == '\0') {
            int linelength = cursor - linestart - 1; // Minus the null terminator
            printf("%.*s\n", linelength, linestart); // Print line using the length of string
            break;
        } else if (ch == '\n') {
            int linelength = cursor - linestart - 1; // Minus the newline
            printf("%.*s\n", linelength, linestart); // Print line using the length of string
            linestart = cursor;

            printf("%4d\t", ++line); // Print next line prefix
        } else if (ch == '\r') {
            continue; // Ignore the Windows thing
        }
    }
    
    return 0;
}