sawaYch

yt-dlp usage

# check format & codec
yt-dlp -F https://www.youtube.com/watch?v=vWsmn3-7scs
# output
[info] Available formats for vWsmn3-7scs:
ID  EXT RESOLUTION FPS │   FILESIZE   TBR PROTO │ VCODEC        VBR ACODEC      ABR ASR MORE INFO
────────────────────────────────────────────────────────────────────────────────────────────────────────────
139 m4a audio only     │ ~ 66.18MiB   64k dash  │ audio only        mp4a.40.5   64k 22k DASH audio, m4a_dash
140 m4a audio only     │ ~148.90MiB  144k dash  │ audio only        mp4a.40.2  144k 44k DASH audio, m4a_dash

sawaYch

            ┏━━━━━━━━━━━━━━┓
            ┃              ┃
            ┃ ❤️          ｜
            |              |
            ┗━━━━━━━━━━━━━━┛

sawaYch

import signal
import os
import hmac
import hashlib
import sys


def tle_handler(*args):
    print('⏰')
    sys.exit(0)

sawaYch

# coding: utf-8
# 自分の得意な言語で
# Let's チャレンジ！！
def min_adjacent_swap(arr):
    swap_times = 0
    n = len(arr) / 2
    iter = 0
    while iter < len(arr) - 1:
        # if current not ideal
        if arr[iter] != iter % n:

sawaYch

IBM Think-Pad X60 Upgrade Log

These day, I tried to upgrade second-hand X60 IBM Think-pad.

It is a really old model (Intel Core 2 Duo ), but still good to use.

It has facing several problems and I am trying to use minimum cost (maybe) to increase the user experience :P

sawaYch

// Load single image

// replace images/photo6244288433388366130.jpg with your image path
// You can find it on the firebase storage console
var imgRef = firebase.storage().ref().child('images/photo6244288433388366130.jpg'); 
imgRef.getDownloadURL().then(function(url){
    var img = document.getElementById('img1');
    img.src = url;

}).catch(function(error) {

sawaYch

/**
require webp & libwebp, see https://developers.google.com/speed/webp/download
run:
cd working_dir # suppose working dir contains all webp that u want to convert
node ./convert.js # wait for it until done
*/
const child = require("child_process");
const fs = require("fs");
const path = require("path");
const util = require("util");

sawaYch

What is Cryptsetup and LUKS

Cryptsetup is a utility used to conveniently set up disk encryption based
on the DMCrypt kernel module.
These include plain dm-crypt volumes, LUKS volumes, loop-AES
and TrueCrypt (including VeraCrypt extension) formats.
The project also includes a veritysetup utility used to conveniently setup
DMVerity block integrity checking kernel module
and, since version 2.0, integritysetup to setup
DMIntegrity block integrity kernel module.

sawaYch

// https://github.com/jquense/yup/issues/394

import i18next from "i18next";
import { setLocale } from "yup";

export const setFormikLocale = (i18n: typeof i18next): void => {
  // Config yup validation schema default error message
  setLocale({
    mixed: {
      notType: (_ref) => {

sawaYch

matrix:
  include:
    # config for PHP, server side codebase
    - language: php
      php:
        - 7.0
      # deploy jobs here
      install:
        - cd backend_server && composer install
      # unit test jobs here