Elaborate looking key on an old leather desk blotter

πŸ’» Installing and Configuring GPG β›“ πŸ” πŸ‘©β€πŸ’»

This guide is part of my series: The Ultimate Guide to GPG for Email Security. This particular page is about installing and configuring the GPG program on your computer. ...

December 19, 2021 Β· 1 min Β· Jas
Elaborate looking key on an old leather desk blotter

πŸ’» The Ultimate Guide to GPG for Email Security β›“ πŸ” πŸ‘©β€πŸ’»

There are many guides on the web for setting up GPG keys. Most of the one I have come across are outdated, or simply incorrect. This is an attempt to right those wrongs. ...

November 25, 2021 Β· 4 min Β· Jas
Artistic representstion of a VPN on a mobile device

πŸ’» Setup AWS EC2 Host for Wireguard Private VPN 🌩 πŸ” πŸ‘©β€πŸ’»

(Part 1/3) In this post, I shall manually setup from scratch a Wireguard VPN on an AWS EC2 instance and make it available for secure browsing from my mobile devices. This setup process will be full manual for our first post, to understand all the principles and terminology before Post 2 where we will use the AWS CLI and Ansible to provision the EC2 instance; and later Post 3 where we will use Terraform and Infrastructure-as-Code principles to create the whole setup automatically. ...

October 2, 2021 Β· 29 min Β· Jas
Emoji image

πŸ’» Cut & paste Emoji Codes 😍 πŸ‘©β€πŸ’» πŸ³β€πŸŒˆ

Just dropping this here so I don’t lose it, this page has all modern emoji codes for cut & paste, e.g. if you need a computer technical lady emoji you need to do this: \U0001f469\u200D\U0001f4bb to see this: πŸ‘©β€πŸ’» https://emojiterra.com/ FIN

September 14, 2021 Β· 1 min Β· Jas
Partially solved sudoku puzzles and pencil

πŸ’» Sudoku Solver (by the Prime Minister of Singapore, Hsien Loong Lee) 🌊 🧩 πŸ‘©β€πŸ’»

So, in 2015, the Prime Minister of Singapore, Hsien Loong Lee, posted a C language sudoku solver to leetcode.com and I can see a lot of bitwise manipulation in the code. I think it is worth our time to take the solution to pieces and see how it runs so fast. ...

July 10, 2021 Β· 11 min Β· Jas
An old letraset transparency

πŸ’» The Thing Namer 🐍 πŸ‘©β€πŸ’» ✨

There are two hard problems in computer science: we have one joke, and it’s not funny. – heyjdp I have things that need naming. So I propose a short project to arbitrarily name projects, because why not? It’s fun! ...

June 2, 2021 Β· 5 min Β· Jas
A book about the C programming language

πŸ’» C Code Development in VS Code for MacOS 🌊 πŸ‘©β€πŸ’» 🍏

A quick how-to guide to installing C code tooling for Microsoft VS Code on MacOS. ...

April 29, 2021 Β· 4 min Β· Jas
The Python3 language logo over some Python code

πŸ’» Python3 Development on VS Code for MacOS 🐍 πŸ‘©β€πŸ’» 🍏

A quick how-to guide to installing Python3 tooling for Microsoft VS Code on MacOS. ...

April 11, 2021 Β· 3 min Β· Jas
Raspberry Pi header with power wires

πŸ’» Raspberry Pi 4 Serial Console πŸ“ πŸ₯§ πŸ‘©β€πŸ’»

Raspberry Pi has been through a few revisions now, and the data available on the www tends to get stale very fast. This is the right way of connecting to a Raspberry Pi 4 via a serial consoles. Which GPIO pins are used for the serial console? As can be seen in the image above and the cartoon here, the TX (PIN8) and RX (PIN10) pins for the serial port are next to the 5V power (PIN2) and GND (PIN6) pins on the top left....

April 19, 2020 Β· 4 min Β· Jas
A linear feedback shift register

πŸ’» Linear Feedback Shift Register β›“ ✨ πŸ‘©β€πŸ’»

How did I get started in technology? Great question, let’s explore… ...

February 17, 2020 Β· 5 min Β· Jas