Prasetiyo Hadi Purwoko prasetiyohadi

Create a new project

poetry new <project-name>

Add a new lib

potry add <library>

Remove a lib

Programming as Theory Building

Peter Naur

Peter Naur's classic 1985 essay "Programming as Theory Building" argues that a program is not its source code. A program is a shared mental construct (he uses the word theory) that lives in the minds of the people who work on it. If you lose the people, you lose the program. The code is merely a written representation of the program, and it's lossy, so you can't reconstruct

Raspberry Pi on Internet via reverse SSH tunnel

HackerNews discussed this with many alternative solutions: https://news.ycombinator.com/item?id=24893615

I already have my own domain name: mydomain.com. I wanted to be able to run some webapps on my Raspberry Pi 4B running perpetually at home in headless mode (just needs 5W power and wireless internet). I wanted to be able to access these apps from public Internet. Dynamic DNS wasn't an option because my ISP blocks all incoming traffic. ngrok would work but the free plan is too restrictive.

I bought a cheap 2GB RAM, 20GB disk VM + a 25GB volume on Hetzner for about 4 EUR/month. Hetzner gave me a static IP for it. I haven't purchased a floating IP yet.

	# If you come from bash you might have to change your $PATH.
	# export PATH=$HOME/bin:/usr/local/bin:$PATH

	clear && neofetch

	# Set name of the theme to load --- if set to "random", it will
	# load a random theme each time oh-my-zsh is loaded, in which case,
	# to know which specific one was loaded, run: echo $RANDOM_THEME
	# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
	ZSH_THEME="spaceship"

	######################################################################
	# START OF PLUGINS
	######################################################################

	# Plugin manager for tmux
	set -g @plugin 'tmux-plugins/tpm'

	# Simple tmux options for anyone
	set -g @plugin 'tmux-plugins/tmux-sensible'

	env:
	TERM: xterm-256color

	# Colors (Gruvbox dark)
	colors:
	# Default colors
	primary:
	# hard contrast: background = '#1d2021'
	background: '#282828'
	# soft contrast: background = '#32302f'

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1" />
	<title>scratch</title>
	<style>
	body {
	font-family: Hack, Menlo, Monaco, 'Droid Sans Mono', 'Courier New', monospace;
	white-space: pre;

	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
	" VIM SETTINGS
	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

	" TURNS LINE NUMBERING ON
	set nu

	" TRIGGER `autoread` WHEN FILES CHANGES ON DISK
	set autoread
	autocmd FocusGained,BufEnter,CursorHold,CursorHoldI * if mode() != 'c' \| checktime \| endif

	# Stick this in your home directory and point your Global Git config at it by running:
	#
	# $ git config --global core.attributesfile ~/.gitattributes
	#
	# See https://tekin.co.uk/2020/10/better-git-diff-output-for-ruby-python-elixir-and-more for more details

	*.c diff=cpp
	*.h diff=cpp
	*.c++ diff=cpp
	*.h++ diff=cpp

	#!/bin/bash
	###
	### my-script — does one thing well
	###
	### Usage:
	### my-script <input> <output>
	###
	### Options:
	### <input> Input file to read.
	### <output> Output file to write. Use '-' for stdout.