KAKAN theKAKAN

PostgreSQL is Enough

Background and Cron Jobs

CUSTOM GAME ENGINES: A Small Study

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) because d

If you can't get X11 or Wayland GUI Linux apps to start anymore on Chrome OS, try the following.

In the Terminal app, this will show the status of your systemd user services/units:

systemctl --user

If [email protected] and [email protected] show a failed status, the following worked for me:

sudo ln -s /opt/google/cros-containers/bin/sommelier.elf /usr/bin/

Here's a list of mildly interesting things about the C language that I learned mostly by consuming Clang's ASTs. Although surprises are getting sparser, I might continue to update this document over time.

There are many more mildly interesting features of C++, but the language is literally known for being weird, whereas C is usually considered smaller and simpler, so this is (almost) only about C.

1. Combined type and variable/field declaration, inside a struct scope [https://godbolt.org/g/Rh94Go]

struct foo {
   struct bar {
 int x;

Libuv and libev, two I/O libraries with similar names, recently had the privilege to use both libraries to write something. Now let's talk about my own subjective expression of common and different points.

The topic of high-performance network programming has been discussed. Asynchronous, asynchronous, or asynchronous. Whether it is epoll or kqueue, it is always indispensable to the asynchronous topic.

Libuv is asynchronous, and libev is synchronous multiplexing IO multiplexing.

Libev is a simple encapsulation of system I/O reuse. Basically, it solves the problem of different APIs between epoll and kqueuq. Ensure that programs written using livev's API can run on most *nix platforms. However, the disadvantages of libev are also obvious. Because it basically just encapsulates the Event Library, it is inconvenient to use. For example, accept(3) requires manual setnonblocking after connection. EAGAIN, EWOULDBLOCK, and EINTER need to be detected when reading from a socket. This is a

	#!/usr/bin/env -S bash -c "docker run -p 8080:8080 -it --rm \$(docker build --progress plain -f \$0 . 2>&1 \| tee /dev/stderr \| grep -oP 'sha256:[0-9a-f]*')"

	# syntax = docker/dockerfile:1.4.0

	FROM node:20

	WORKDIR /root

	RUN npm install sqlite3

	#!/usr/bin/env python3
	"""Flatpak CLI Shortcut Generator

	A simple no-argument tool that generates launchers with traditional non-flatpak
	command names for your installed Flatpak applications in ~/.local/bin/flatpak.

	Does full collision detection and warns you if you forgot to add its output
	directory to your PATH. Also overrules the command-line specified in the
	``.desktop`` file if the Flatpak maintainer didn't include support for
	command-line arguments.

	import matplotlib.pyplot as plt

	# don't fucking ask me how this works
	magic_header = """
	00 00 00 04 67 41 4D 41 00 00 27 10 4C 57 C2 4C

	00 00 00 20 63 48 52 4D 00 00 87 0B 00 00 8C 0F
	00 00 FD 51 00 00 81 40 00 00 7D 76 00 00 E9 90
	00 00 3C E5 00 00 19 CD 21 AE 5C 4A

	// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
	// http://creativecommons.org/publicdomain/zero/1.0/

	// HTML files: try the network first, then the cache.
	// Other files: try the cache first, then the network.
	// Both: cache a fresh version if possible.
	// (beware: the cache will grow and grow; there's no cleanup)

	const cacheName = 'files';

	#!/bin/bash

	gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'