Prasetiyo Hadi Purwoko prasetiyohadi

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.

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

Create a new project

poetry new <project-name>

Add a new lib

potry add <library>

	I was drawn to programming, science, technology and science fiction
	ever since I was a little kid. I can't say it's because I wanted to
	make the world a better place. Not really. I was simply drawn to it
	because I was drawn to it. Writing programs was fun. Figuring out how
	nature works was fascinating. Science fiction felt like a grand
	adventure.

	Then I started a software company and poured every ounce of energy
	into it. It failed. That hurt, but that part is ok. I made a lot of
	mistakes and learned from them. This experience made me much, much

	#!/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.

	# 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

	""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
	" 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

	<!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;

	env:
	TERM: xterm-256color

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