FlandreDaisuki

Making X11 apps work inside docker

TL;DR

xhost +local:docker
docker run -e DISPLAY=$DISPLAY -v /tmp/.X11-unix/:/tmp/.X11-unix ...

Details

Every now and then I want to run X apps inside docker, and then I always hit some issues.

FlandreDaisuki

// ==UserScript==
// @name         slido mark as read
// @namespace    https://flandre.tw
// @version      0.0.2
// @description  Add "mark as read" function to slido question
// @author       FlandreDaisuki
// @match        https://app.sli.do/event/*
// @require      https://unpkg.com/winkblue@0.0.7/dist/winkblue.umd.js
// @icon         https://www.google.com/s2/favicons?sz=64&domain=sli.do
// @grant        none

FlandreDaisuki

FP 在應用程式的高峰可能在 2013~2014 左右，那時 John Carmack port Wolf3D 到 Haskell 上，還提到：

I haven't done any functional programming since I started crunching at Oculus, but I consider the time I spent on it extremely worthwhile.

也說過：

I feel a touch of impostor syndrome when I get invited to speak at functional programming conferences.

同年 (2014) audreyt 在 FLOLAC'14 給了演講《函數程式設計的商業應用》。

FlandreDaisuki

#!/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

FlandreDaisuki

Code Examples for my Blog Post: Create a Node.js Websocket Server in Five Minutes

The full Github repo can be found here: https://github.com/kevinchisholm/video-code-examples/tree/master/node/websocket-basic-server

Setup

• Clone this repo:

FlandreDaisuki

小麥注音 on Linux Mint 21.2

原專案 README: https://github.com/openvanilla/fcitx5-mcbopomofo#readme

依賴

• runtime

  sudo apt install -y fcitx5 fcitx5-chinese-addons

FlandreDaisuki

version: '3.7'

services:
  http-server:
    container_name: http-server
    image: python:alpine
    working_dir: /root
    volumes:
      - $PWD:/root:ro
    command: python -m http.server ${HTTP_SERVER_PORT:-24680}

FlandreDaisuki

let cache = new Map();
let pending = new Map();

function fetchTextSync(url) {
  if (cache.has(url)) {
    return cache.get(url);
  }
  if (pending.has(url)) {
    throw pending.get(url);
  }

FlandreDaisuki

#!/bin/bash

set -e

if [ -z "$1" ]; then
    echo "Usage: $0 <path to video which play on chrome>"
    exit 1
fi

FILEPATH="$1"

FlandreDaisuki

module Student = struct
  type t = { id: int; name: string; }
  let init (id, name) = { id = id; name = name; }
end
;;

let alice = Student.init(0, "Alice")
(* val alice : Student.t = {Student.id = 0; name = "Alice"} *);;

let () = Printf.printf "Hello, %s\n" alice.name