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Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

Testing notes

Uncle Bob: Test First

Source: http://blog.8thlight.com/uncle-bob/2013/09/23/Test-first.html

tests are specs for the system and are more important than the system itself
(Tests should be) short, well factored, and well named. They ought to read like specifications; because they are specifications
(Goal:) trust your test suite to the extent that, if it passes, you know you

Find Free Port with PHP

This is a quick way to find a random free port on a system using PHP:

$port = find_free_port();

Benchmarked locally, where finding a port always took around 0.15ms.

Europe

SkinFlint : Price comparison site which has some nice filtering options per switch type etc. Searches for offers in UK, Germany, Poland and Austria
mykeyboard.eu : Keyboards, keycaps and accessories. Based in Belgium.
candykeys.com : European Store selling Vortex, Leopold, KBP, Anne Pro keyboards, keycap sets and components (ISO + ANSI). Based in Germany, ships to EU.
falba.tech : custom wooden bamboo cases, and some acrylic and carbon ones. Switch packs (65 browns at 48EUR). Other parts for the GH60, Atreus, ErgoDox. Also Microcontrollers, diodes, leds etc.
42keebs.eu - Mostly PCBs, tools and accessories. Located in Czech Republic.
KEYGEM : Switches, Keycaps, lubes, cables, DIY kits and deskmats. Based in Germany, ships to the EU and worldwide.
[Eloquent Clicks - Custom Mechanical Keyboard Store](https://www.eloquen

Running games through Steam's Proton is great. But what if there is a secondary exe or configuration application bundled with the game? How can you launch it if Steam itself only launches the game?

Simply run this command in a terminal:

cd /path/to/steam/steamapps/compatdata/20920/pfx

STEAM_COMPAT_DATA_PATH="/path/to/steam/steamapps/compatdata/20920" WINEPREFIX=$PWD \
    "$HOME/.steam/root/steamapps/common/Proton 5.0/proton" run ./drive_c/path/to/custom_application.exe

https://tusf.page/valbli

(Note: This is a draft, and subject to change.)

Many writing systems have been proposed for Lojban. Hangul is the writing system used in Korean, and potentially a great option to use for Lojban. It's a featural writing system, meaning that most of its symbols are chosen for a reason, and not just arbitrarily. The most attractive feature of Hangul is the syllable-blocks that well compress the language.

Sync observables created from a synchronous source will emit values synchronously, so the observers will receive values in the order of subscription.

The source iterable is traversed for each observer subscribed. For example, the size of source iterable is M, there are N observers, so the traversal times is M*N. This is explained in RxJS5 Manual:

Plain Observables are unicast (each subscribed Observer owns an independent execution of the Observable)

let sub = Rx.Observable.range(0, 3);

sub.subscribe(value => console.log(`observer 1: ${value}`));
sub.subscribe(value => console.log(`observer 2: ${value}`));

	#!/bin/sh

	echo "Atualiza pacotes"
	apt -y update

	echo "Instalar [WGET]"
	apt install wget -y


	echo "Download Nessus"

	import streamlit as st
	import concurrent.futures # We'll do computations in separate processes!
	import mymodule # This is where you'll do the computation

	# Your st calls must go inside this IF block.
	if __name__ == '__main__':
	st.write("Starting a long computation on another process")

	# Pick max number of concurrent processes. Depends on how heavy your computation is, and how
	# powerful your machine is.

	server {

	listen 127.0.0.1:5002;
	listen [::1]:5002;
	server_name .dev;

	## Set dev's base path in order to appending L1 name
	set $base_path "/Library/WebServer/Documents";
	## Start domain regex match
	set $domain $host;