Federico Mengozzi fedemengo

Developer experience, libraries, performance… (2021/11)

I'll preface this with three things. 1. I prefer schemes over Common Lisps, and I prefer Racket of the Schemes. 2. There is more to it than the points I raise here. 3. I assume you have no previous experience with Lisp, and don't have a preference for Schemes over Common Lisp. With all that out of the way... I would say Common Lisp/SBCL. Let me explain

SBCL Is by far the most common of the CL implementations in 2021. It will be the easiest to find help for, easiest to find videos about, and many major open source CL projects are written using SBCL
Download a binary directly from the website http://www.sbcl.org/platform-table.html (even for M1 macs) to get up and running (easy to get started)
Great video for setting up Emacs + Slime + Quick Lisp https://www.youtube.com/watch?v=VnWVu8VVDbI

Now as to why Common Lisp over Scheme

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Use this to automatically scrape all of your saved Instapaper articles locally as HTML and PDF files. I originally wrote this to read my saved documents on my reMarkable tablet. Instapaper does not have an option to export all my stuff as PDF as far as I could tell (the built-in options only export a subset).

You will need to have the following packages installed:

Configure your username and password, then run the script. It will go through all articles shown on your home page and download the copy Instapaper has stored into a folder called output as HTML file and convert it into a PDF. You can customize the look by updating the included styles.css file. Any errors will be reported and logged to failed.txt. Errors might be due to parsing errors on Instapaper's side or due to PDF conversion issues.

Things I believe

This is a collection of the things I believe about software development. I have worked for years building backend and data processing systems, so read the below within that context.

Agree? Disagree? Feel free to let me know at @JanStette.

Fundamentals

Keep it simple, stupid. You ain't gonna need it.

MAGIC aka Making Anything Gruelingly "Impossible" Coherent

Whatever operating system you are using to create the USB, you will need to have a Windows 10 ISO, either from Microsoft or your system manufacturer and have a USB drive 8GB or larger (or one with at least 5GB of free space and using the FAT32 filesystem, but using a fresh and empty one is best).

TL;DR

#macOS/Linux
# First try the `bootiso` program, it has options for splitting the WIM for you!
# https://jsamr.github.io/bootiso/
# You need to already have 7zip aka `p7zip` on macOS and Linux, and `wimlib` macOS via `brew` or `wimtools` on Linux

How to disable cloud-init in Ubuntu

Prevent start

Create an empty file to prevent the service from starting
```
  sudo touch /etc/cloud/cloud-init.disabled
```

Uninstall

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

	ARN Base Pattern :-

	arn:<aws_parition>:<aws_service>:[<aws_region>]:<account_id>:<root \| resource_type>:/<resource_name>[/<sub_resource_names>...]

	i. <aws_partition>
	Regex - (aws\|aws-us-gov\|aws-cn)

	ii. <aws_service> - No fixed pattern
	iii. <aws_region> - No fixed pattern
	Most of the regions occur in combination of 2 letter followed by "-" followed by a combination of direction based word , followed by a "-" and then a digit.

	// Create an express app
	const express = require('express');
	const app = express();

	// Tell it to use Neo4j middleware
	app.use(require('./neo4j'));

	// Example Route
	app.get('/', (req, res) => {
	// Create Driver session